Amd epyc 7251 benchmark: AMD EPYC 7251 vs Intel Xeon W-2125 @ 4.00GHz [cpubenchmark.net] by PassMark Software

AMD EPYC 7251 Linux Benchmarks and Review the Entry EPYC

AMD EPYC In Gigabyte Socket

We already reviewed the AMD EPYC 7251 in a dual socket configuration, but we wanted to take a look at the other end of the spectrum, the single socket configuration. Today we have a review of the ADM EPYC 7251 in an appropriately matched AMD EPYC platform from Gigabyte. We see the AMD EPYC 7251 as a play in markets that are focusing on low-cost dedicated servers, potentially with a lot of RAM onboard.

AMD EPYC 7251 Overview

In our AMD EPYC 7251 in a dual socket review, we suggested that these chips are primarily for creating platforms with a minimal CPU cost. That holds true and is somewhat amplified in a single socket scenario. Indeed, at around $475 retail, the next step up in the stack, the AMD EPYC 7281 is $175 or about 37% more. In low-end configurations, that $175 is significant but the 7281 backs it up with more performance. In our Market Positioning segment, we are going to focus on how buyers looking at the AMD EPYC 7251 have a strong incentive to move up the stack in single socket configurations.

With 8 cores and 16 threads across four NUMA nodes, it creates a configuration not seen often in modern memory:

AMD EPYC 7251 Lscpu

Each NUMA node is a physical die on the EPYC package. As you can see, NUMA node0 CPU(s) are listed as 0, 1, 8, and 9. That means that the die has two physical cores each with a second thread via SMT. If you have a workload that is not NUMA aware and you do nothing to change that, this configuration has a significant impact. You can read more about why in our AMD EPYC 7000 Series Architecture Overview for Non-CE or EE Majors article or learn about it in this video:

Key stats for the AMD EPYC 7251 CPU: 8 cores / 16 threads, 2.1GHz base and 2.9GHz turbo with 32MB L3 cache. The CPU features a 120W TDP. Here is the AMD spec page. Essentially for around $1000 (for two CPUs) one gets 16 cores/ 32 threads and can address up to 4TB of DDR4-2400 RAM.

That DDR4-2400 is a deviation from the remainder of the AMD EPYC 7000 line. It only supports DDR4-2400 even if DDR4-2666 is installed.

AMD EPYC 7251 2P Memory Speed

For the small minority of server users who memory disable POR and manually set speed, we have not yet seen a vendor platform that is able to do this on the EPYC side. Our suggestion is to stick with specs for EPYC.

Test Configuration

For this review, we are specifically using a system we see as a great compliment to the chip, this is our first public review using the Gigabyte R151-Z30 and MZ31-AR0 motherboard.

  • CPU: AMD EPYC 7251
  • Server Barebones: Gigabyte R151-Z30
  • RAM: 8x 16GB 128GB DDR4-2666 RDIMMs (Samsung)
  • SSD: 1x Intel DC S3710 400GB SATA SSD
  • NIC: 1x Mellanox ConnectX-3 Pro EN VPI

The Gigabyte R151-Z30 we are using for this test we believe is well suited for the AMD EPYC 7251 CPU. It is a basic AMD EPYC server that will fill the role of a dedicated or virtualization server well.

Gigabyte R151 Z30 Front

Key specs are that the server has built-in dual SFP+ 10GbE networking along with a full set of 16 DIMM slots for the single socket AMD EPYC CPU.

Gigabyte R151 Z30 Overview

Perhaps the other intriguing point of the Gigabyte R151-Z30 is the motherboard. Serving as the cornerstone of the platform is a Gigabyte MZ31-AR0 single socket AMD EPYC motherboard.

Gigabyte MZ31 AR0 AMD EPYC

The Gigabyte MZ31-AR0 is a popular motherboard because it is one of the first AMD EPYC motherboards to hit the market. It also exposes a ton of functionality including 84x PCIe lanes and 16x SATA III lanes directly with more PCIe dedicated for platform level features.

Gigabyte MZ31 AR0 AMD EPYC Block Diagram

On an interesting point here, this system configuration has more expansion capabilities than a dual socket Intel Xeon Scalable dual-socket platform all using a single socket EPYC. We are about to get to the benchmarks, but if your goal is to simply connect as much as possible to a single $475 CPU, that is a strong value point for the AMD EPYC 7251.

AMD EPYC 7251 Benchmarks

For this exercise, we are using our legacy Linux-Bench scripts which help us see cross-platform “least common denominator” results we have been using for years as well as several results from our updated Linux-Bench3 scripts. At this point, our benchmarking sessions take days to run and we are generating well over a thousand data points. We are also running workloads for software companies that want to see how their software works on the latest hardware. As a result, this is a small sample of the data we are collecting and can share publicly. Our position is always that we are happy to provide some free data but we also have services to let companies run their own workloads in our lab, such as with our DemoEval service. What we do provide is an extremely controlled environment where we know every step is exactly the same and each run is done in a real-world data center, not a test bench.

Python Linux 4.4.2 Kernel Compile Benchmark

This is one of the most requested benchmarks for STH over the past few years. The task was simple, we have a standard configuration file, the Linux 4.4.2 kernel from kernel.org, and make the standard auto-generated configuration utilizing every thread in the system. We are expressing results in terms of compiles per hour to make the results easier to read.

AMD EPYC 7251 Linux Kernel Compile Benchmark

Here we see AMD’s case that the EPYC line can replace potentially two processors where a $475 EPYC 7251 nears the performance of two Intel Xeon Silver 4112 CPUs.

c-ray 1.1 Performance

We have been using c-ray for our performance testing for years now. It is a ray tracing benchmark that is extremely popular to show differences in processors under multi-threaded workloads. We are going to use our new Linux-Bench3 8K render since it teases out more differences in this CPU segment than our older 4K results.

AMD EPYC 7251 C Ray 4K Benchmark

In terms of c-ray 4K performance, we can see that the 8 core AMD EPYC nears the $1002 Intel Xeon Silver 4116 in terms of performance.

AMD EPYC 7251 C Ray 8K Benchmark

In our 8K results, we focused the comparison set a bit more. One can also see that the AMD EPCYC 7251 falls just between the dual Intel Xeon Silver 4112 and Silver 4108, at the CPU cost of a single socket Intel Xeon Silver.

7-zip Compression Performance

7-zip is a widely used compression/ decompression program that works cross-platform. We started using the program during our early days with Windows testing. It is now part of Linux-Bench.

AMD EPYC 7251 7 Zip Compression Benchmark

One point we wanted to make was the enormous chasm between the AMD EPYC 7251 and 7351P. If you have 8x 16GB DIMMs ($1700 at the time of this writing) a $1400 server and a $300 SSD, the price differential is less than 10% to essentially get 2x the performance for a single socket server.

NAMD Performance

NAMD is a molecular modeling benchmark developed by the Theoretical and Computational Biophysics Group in the Beckman Institute for Advanced Science and Technology at the University of Illinois at Urbana-Champaign. More information on the benchmark can be found here. We are going to augment this with GROMACS in the next-generation Linux-Bench in the near future. With GROMACS we have been working hard to support Intel’s Skylake AVX-512 and AVX2 supporting AMD Zen architecture. Here are the comparison results for the legacy data set:

AMD EPYC 7251 NAMD Benchmark

Although we are not taking advantage of AVX-512 in these tests, we still see solid performance from the AMD EPYC. If you were to compare this chip to a single Intel Xeon Silver 4110 you can see how strong the AMD architecture is.

Sysbench CPU test

Sysbench is another one of those widely used Linux benchmarks. We specifically are using the CPU test, not the OLTP test that we use for some storage testing.

AMD EPYC 7251 Sysbench CPU Benchmark

Here the AMD EPYC 7251 falls between the Xeon Silver 4108 and Silver 4110. Those are both eight core Intel parts that are priced just below and above the EPYC 7251.

OpenSSL Performance

OpenSSL is widely used to secure communications between servers. This is an important protocol in many server stacks. We first look at our sign tests:

AMD EPYC 7251 OpenSSL Sign Benchmark

Here are the verify results:

AMD EPYC 7251 OpenSSL Verify Benchmark

This comparison set scales to much higher performance parts. If you are consolidating from previous generation parts, a dual Intel Xeon E5-2620 V1 server is about the same performance as a single $475 CPU now.

UnixBench Dhrystone 2 and Whetstone Benchmarks

Some of the longest-running tests at STH are the venerable UnixBench 5.1.3 Dhrystone 2 and Whetstone results. They are certainly aging, however, we constantly get requests for them, and many angry notes when we leave them out. UnixBench is widely used so we are including it in this data set. Here are the Dhrystone 2 results:

AMD EPYC 7251 UnixBench Dhrystone 2 Benchmark

Here are the whetstone results:

AMD EPYC 7251 UnixBench Whetstone Benchmark

Again we see performance somewhere around a dual Intel Xeon Silver 4112 and E5-2620 V1 configuration for AMD’s lowest cost EPYC 7000 series CPU.

GROMACS STH Small AVX2/ AVX-512 Enabled

We have a small GROMACS molecule simulation we previewed in the first AMD EPYC 7601 Linux benchmarks piece. In Linux-Bench3 we are using a “small” test for single and dual socket capable machines. Our medium test is more appropriate for higher-end dual and quad socket machines. Our GROMACS test will use the AVX-512 and AVX2 extensions if available.

AMD EPYC 7251 GROMACS STH Small Benchmark

When we enable AVX-512 on this type of workload, the Intel Xeon Silver parts become more competitive. We put the Intel Xeon Gold 6134 in this chart for a single purpose. With eight cores and dual FMA AVX-512, Intel is seeing some enormous performance gains. Intel has an advantage both on the AVX-512 and on the high clock speed front, and charges handsomely for it. The Intel Xeon Gold 6134 costs about as much as five AMD EPYC 7251’s.

Chess Benchmarking

Chess is an interesting use case since it has almost unlimited complexity. Over the years, we have received a number of requests to bring back chess benchmarking. We have been profiling systems and are ready to start sharing results:

AMD EPYC 7251 Chess Benchmark

Here we wanted to point out our biggest reservation for recommending the AMD EPYC 7251: other EPYCs. Both the AMD EPYC 7281 and EPYC 7351P are a few hundred dollars moer but offer an enormous jump in performance.

A Note on Power Consumption

The other side of the equation is power consumption. The AMD EPYC 7301 is putting up some impressive benchmark numbers, but that does have an associated cost. Here is what we saw on our PDU after a few runs:

  • Idle: 72W
  • 70% Load: 157W
  • 100% Load: 184W
  • Peak: 203W

Note these results were taken using a 208V Schneider Electric / APC PDU at 17.5C and 70% RH. Our testing window shown here had a +/- 0.3C and +/- 2% RH variance. The figures are certainly more than the Intel Xeon Silver line, but with that extra power consumption, AMD is delivering a more expandable platform and more performance.

These numbers are not directly comparable to single and dual Intel Xeon Silver results. We use one 16GB RDIMM per channel which means our single CPU results have two more DIMMs, and more memory capacity for AMD EPYC. On dual Intel Xeon configurations, we use four more DIMMs and therefore 50% more memory than AMD EPYC. That does have some impact on power consumption. At the same time, we recommend using at least one DIMM per channel in these architectures to ensure optimal performance.

Market Positioning

Thes chips are not released in a vacuum instead, they have competition on both the Intel and AMD sides. When you purchase a server and select a CPU, it is important to see value of a platform versus its competitors.

AMD EPYC 7251 v. Intel Xeon Silver

The AMD EPYC 7251 versus Intel story takes two paths. First, if you are looking for the lowest cost server with minimal expandability, you will use Intel Xeon Bronze. Not every server needs a ton of PCIe slots. In 1U 3.5″ servers, it is nearly impossible to utilize all of an EPY platform’s PCIe lanes anyway.

On the Xeon Silver line, the comparison is relatively straightforward. AMD EPYC has more platform expandability, more CPU performance and more memory capacity/ bandwidth than the Intel Xeon Silver series single socket configurations. If you move to dual socket configurations, Intel can be competitive at a significantly higher cost. Intel benefits from low power consumption while AMD is optimizing for performance.

AMD EPYC 7251 v. AMD EPYC

When it comes to the AMD EPYC v. other AMD EPYC configurations, we see the AMD EPYC 7251 as the CPU that gets one interested in the product line. At the same time, the enormous performance advantage of the EPYC 7281 and AMD EPYC 7351P that we showed here, makes them an enormous value for a modest price increase.

AMD EPYC Aggressive 1P Pricing Single Socket Sub $1.1K Comparison

This chart shows a fairly basic metric of AMD EPYC 7251 MSRP / base clock * cores metric to approximate how much one is paying for a clock cycle on a core. As you can see, the AMD EPYC 7281 and 7351P are both amazing values in this space and that trend continues to the AMD EPYC 7401P. When looking at the TCO of even a low-end EPYC 7251 server, the difference between the EPYC 7351P and 7251 is negligible for 2x the performance. Here is an example of the 7251:

AMD EPYC 7251 TCO Example Low End

When we take the same configuration, using an EPYC 7351P with twice the cores instead, here is what the same configuration TCO breakdown yields:

AMD EPYC 7351P TCO Example Low End

One essentially can upgrade to around twice as much CPU horsepower for an 8% bump in three year TCO which is an astounding value. Using higher-end configurations such as 24x NVMe + 100GbE or 6x GPU + EDR Infiniband would yield an even smaller price discrepancy. In a single-socket format, we highly recommend spending more and moving up to the three “P” SKUs AMD offers.

Final Words

For an entry-level CPU, we think that the AMD EPYC 7251 will have a lot of competition from the Intel Xeon Bronze series and Silver 4108. There are many servers where one simply needs to light a small platform and at $475 AMD’s entry is expensive especially if one wants to fully populate memory channels. Beyond that, AMD offers a high-performance 8-core solution and trades power consumption for that extra performance.

AMD’s competition from higher-end EPYC CPUs would make us strongly recommend stepping up to the EPYC 7281 or 7351P if you are in the market. Those chips represent such a great value that it is borderline a no-brainer upgrade.

CPU-Z Benchmark for AMD EPYC 7251 (1T)

Best CPU performance — 64-bit — October 2022

AMD EPYC 7251 (1T)

Back to validation

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AMD Epyc 7251 PassMark CPU Mark (Multi-Thread)


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Athlon II X2 240AMD Athlon II X2 240eAMD Athlon II X2 245AMD Athlon II X2 245eAMD Athlon II X2 250AMD Athlon II X2 250eAMD Athlon II X2 250uAMD Athlon II X2 255AMD Athlon II X2 260AMD Athlon II X2 260uAMD Athlon II X2 265AMD Athlon II X2 270AMD Athlon II X2 270uAMD Athlon II X2 280AMD Athlon II X2 340AMD Athlon II X2 370KAMD Athlon II X3 400eAMD Athlon II X3 405eAMD Athlon II X3 415eAMD Athlon II X3 420eAMD Athlon II X3 425AMD Athlon II X3 425eAMD Athlon II X3 435AMD Athlon II X3 440AMD Athlon II X3 445AMD Athlon II X3 450AMD Athlon II X3 455AMD Athlon II X3 460AMD Athlon II X4 600eAMD Athlon II X4 605eAMD Athlon II X4 610eAMD Athlon II X4 615eAMD Athlon II X4 620AMD Athlon II X4 620eAMD Athlon II X4 630AMD Athlon II X4 631AMD Athlon II X4 635AMD Athlon II X4 638AMD Athlon II X4 640AMD Athlon II X4 641AMD Athlon II X4 645AMD Athlon II X4 651AMD Athlon II X4 651KAMD Athlon II X4 740AMD Athlon II X4 750KAMD Athlon II X4 760KAMD Athlon II X4 860KAMD Athlon MP 2400+AMD Athlon MP 2800+AMD Athlon Neo MV-40AMD Athlon Neo X2 L325AMD Athlon Neo X2 L335AMD Athlon PRO 200GEAMD Athlon PRO 300GEAMD Athlon PRO 300UAMD Athlon Silver 3050UAMD Athlon X2 340AMD Athlon X2 350AMD Athlon X2 370KAMD Athlon X2 450AMD Athlon X2 BE-2300AMD Athlon X2 BE-2350AMD Athlon X2 BE-2400AMD Athlon X2 L310AMD Athlon X2 QL-60AMD Athlon X2 QL-64AMD Athlon X2 QL-65AMD Athlon X2 QL-66AMD Athlon X4 530AMD Athlon X4 550AMD Athlon X4 740AMD Athlon X4 750KAMD Athlon X4 760KAMD Athlon X4 835AMD Athlon X4 840AMD Athlon X4 845AMD Athlon X4 860KAMD Athlon X4 870KAMD Athlon X4 880KAMD Athlon X4 940AMD Athlon X4 950AMD Athlon X4 970AMD Athlon XP 1500+AMD Athlon XP 1600+AMD Athlon XP 1700+AMD Athlon XP 1800+AMD Athlon XP 1900+AMD Athlon XP 2000+AMD Athlon XP 2100+AMD Athlon XP 2200+AMD Athlon XP 2400+AMD Athlon XP 2500+AMD Athlon XP 2600+AMD Athlon XP 2700+AMD Athlon XP 2800+AMD Athlon XP 3000+AMD Athlon XP 3100+AMD Athlon XP 3200+AMD C-30AMD C-50AMD C-60AMD C-70AMD E-240AMD E-300AMD E-350AMD E-350DAMD E-450AMD 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Atom Z3775Intel Atom Z3775DIntel Atom Z3785Intel Atom Z3795Intel Atom Z510Intel Atom Z515Intel Atom Z520Intel Atom Z530Intel Atom Z540Intel Atom Z550Intel Atom Z670Intel Atom x5-E3930Intel Atom x5-E8000Intel Atom x5-Z8300Intel Atom x5-Z8330Intel Atom x5-Z8350Intel Atom x5-Z8500Intel Atom x5-Z8550Intel Atom x7-E3950Intel Atom x7-Z8700Intel Atom x7-Z8750Intel Celeron 1000MIntel Celeron 1005MIntel Celeron 1007UIntel Celeron 1017UIntel Celeron 1019YIntel Celeron 1020EIntel Celeron 1020MIntel Celeron 1037UIntel Celeron 1047UEIntel Celeron 2. 10Intel Celeron 2.20Intel Celeron 2.30Intel Celeron 2.40Intel Celeron 2.60Intel Celeron 2.70Intel Celeron 2.80Intel Celeron 220Intel Celeron 2950MIntel Celeron 2955UIntel Celeron 2957UIntel Celeron 2961YIntel Celeron 2970MIntel Celeron 2980UIntel Celeron 2981UIntel Celeron 3205UIntel Celeron 3215UIntel Celeron 3755UIntel Celeron 3765UIntel Celeron 3855UIntel Celeron 3865UIntel Celeron 3955UIntel Celeron 3965UIntel Celeron 3965YIntel Celeron 420Intel 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530Intel Celeron M 540Intel Celeron M 550Intel Celeron M 560Intel Celeron M 575Intel Celeron M 585Intel Celeron M 723Intel Celeron M 743Intel Celeron M 900Intel Celeron M P4500Intel Celeron M P4600Intel Celeron M U3400Intel Celeron N2805Intel Celeron N2806Intel Celeron N2807Intel Celeron N2808Intel Celeron N2810Intel Celeron N2815Intel Celeron N2820Intel Celeron N2830Intel Celeron N2840Intel Celeron N2910Intel Celeron N2920Intel Celeron N2930Intel Celeron N2940Intel Celeron N3000Intel Celeron N3010Intel Celeron N3050Intel Celeron N3060Intel Celeron N3150Intel Celeron N3160Intel Celeron N3350Intel Celeron N3450Intel Celeron N4000Intel Celeron N4020Intel Celeron N4100Intel Celeron N4120Intel Celeron P4500Intel Celeron P4505Intel Celeron P4600Intel Celeron U3400Intel Celeron U3405Intel Celeron U3600Intel Core 2 Duo E4300Intel Core 2 Duo E4400Intel Core 2 Duo E4500Intel Core 2 Duo E4600Intel Core 2 Duo E4700Intel Core 2 Duo E6300Intel Core 2 Duo E6320Intel Core 2 Duo E6400Intel Core 2 Duo 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660Intel Pentium 4 P4 3.0Intel Pentium 4-M P4-M 1,7Intel Pentium 4405UIntel Pentium 4405YIntel Pentium 4415UIntel Pentium 957Intel Pentium 967Intel Pentium 977Intel Pentium 987Intel Pentium 997Intel Pentium B940Intel Pentium B950Intel Pentium B960Intel Pentium B970Intel Pentium B980Intel Pentium D 820Intel Pentium D 830Intel Pentium D 915Intel Pentium D 940Intel Pentium D 950Intel Pentium D 960Intel Pentium Dual Core SU4100Intel Pentium Dual Core T2060Intel Pentium Dual Core T2080Intel Pentium Dual Core T2130Intel Pentium Dual Core T2310Intel Pentium Dual Core T2330Intel Pentium Dual Core T2370Intel Pentium Dual Core T2390Intel Pentium Dual Core T2410Intel Pentium Dual Core T3200Intel Pentium Dual Core T3400Intel Pentium Dual-Core T4200Intel Pentium Dual-Core T4300Intel Pentium Dual-Core T4400Intel Pentium Dual-Core T4500Intel Pentium Dual-Core E2140Intel Pentium Dual-Core E2160Intel Pentium Dual-Core E2180Intel Pentium Dual-Core E2200Intel Pentium Dual-Core E2210Intel Pentium Dual-Core E2220Intel Pentium E2140Intel Pentium E2160Intel Pentium E2180Intel Pentium E2200Intel Pentium E2220Intel Pentium E5200Intel Pentium E5300Intel Pentium E5400Intel Pentium E5500Intel Pentium E5700Intel Pentium E5800Intel Pentium E6300Intel Pentium E6500Intel Pentium E6600Intel Pentium E6700Intel Pentium E6800Intel Pentium G2010Intel Pentium G2020Intel Pentium G2020TIntel Pentium G2030Intel Pentium G2100TIntel Pentium G2120Intel Pentium G2130Intel Pentium G2140Intel Pentium G3220Intel Pentium G3220TIntel Pentium G3240Intel Pentium G3240TIntel Pentium G3250Intel Pentium G3250TIntel Pentium G3258Intel Pentium G3260Intel Pentium G3420Intel Pentium G3420TIntel Pentium G3430Intel Pentium G3440Intel Pentium G3440TIntel Pentium G3450Intel Pentium G3450TIntel Pentium G3460Intel Pentium G3470Intel Pentium G4400Intel Pentium G4400TIntel Pentium G4400TEIntel Pentium G4500Intel Pentium G4500TIntel Pentium G4520Intel Pentium G4560Intel Pentium G4560TIntel Pentium G4600Intel Pentium G4600TIntel Pentium G4620Intel Pentium G550Intel Pentium G620Intel Pentium G620TIntel Pentium G630Intel Pentium G630TIntel Pentium G640Intel Pentium G640TIntel Pentium G645Intel Pentium G645TIntel Pentium G6950Intel Pentium G6951Intel Pentium G6960Intel Pentium G840Intel Pentium G850Intel Pentium G860Intel Pentium G870Intel Pentium Gold 4410YIntel Pentium Gold 4415UIntel Pentium Gold 4415YIntel Pentium Gold 4417UIntel Pentium Gold 4425YIntel Pentium Gold 5405UIntel Pentium Gold 6405UIntel Pentium Gold G5400Intel Pentium Gold G5400TIntel Pentium Gold G5420Intel Pentium Gold G5420TIntel Pentium Gold G5500Intel Pentium Gold G5500TIntel Pentium Gold G5600Intel Pentium Gold G5620Intel Pentium III 1133Intel Pentium III 1200Intel Pentium III 1266SIntel Pentium III 1400Intel Pentium III 1400SIntel Pentium J2850Intel Pentium J2900Intel Pentium J3710Intel Pentium J4205Intel Pentium M 1. 30Intel Pentium M 1.40Intel Pentium M 1.50Intel Pentium M 1.60Intel Pentium M 1.70Intel Pentium M 1300Intel Pentium M 705Intel Pentium M 710Intel Pentium M 715Intel Pentium M 718Intel Pentium M 725Intel Pentium M 730Intel Pentium M 735Intel Pentium M 738Intel Pentium M 740Intel Pentium M 745Intel Pentium M 750Intel Pentium M 753Intel Pentium M 758Intel Pentium M 760Intel Pentium M 765Intel Pentium M 770Intel Pentium M 780Intel Pentium N3510Intel Pentium N3520Intel Pentium N3530Intel Pentium N3540Intel Pentium N3700Intel Pentium N3710Intel Pentium N4200Intel Pentium P6000Intel Pentium P6100Intel Pentium P6200Intel Pentium P6300Intel Pentium SU2700Intel Pentium SU4100Intel Pentium Silver J5005Intel Pentium Silver J5040Intel Pentium Silver N5000Intel Pentium Silver N5030Intel Pentium U5400Intel Pentium U5600Intel Xeon 2.66Intel Xeon 3.06Intel Xeon 3.20Intel Xeon 5110Intel Xeon 5120Intel Xeon 5130Intel Xeon 5140Intel Xeon 5148Intel Xeon 5150Intel Xeon 5160Intel Xeon Bronze 3104Intel Xeon Bronze 3106Intel Xeon D-1518Intel Xeon D-1520Intel Xeon D-1521Intel Xeon D-1528Intel Xeon D-1531Intel Xeon D-1537Intel Xeon D-1539Intel Xeon D-1540Intel Xeon D-1541Intel Xeon D-1548Intel Xeon D-1557Intel Xeon D-1559Intel Xeon D-1567Intel Xeon D-1587Intel Xeon D-2123ITIntel Xeon D-2141IIntel Xeon D-2143ITIntel Xeon D-2146NTIntel Xeon D-2183ITIntel Xeon E-2104GIntel Xeon E-2124Intel Xeon E-2124GIntel Xeon E-2126GIntel Xeon E-2134Intel Xeon E-2136Intel Xeon E-2144GIntel Xeon E-2146GIntel Xeon E-2174GIntel Xeon E-2176GIntel Xeon E-2176MIntel Xeon E-2186GIntel Xeon E-2186MIntel Xeon E-2224Intel Xeon E-2224GIntel Xeon E-2226GIntel Xeon E-2236Intel Xeon E-2244GIntel Xeon E-2246GIntel Xeon E-2274GIntel Xeon E-2276GIntel Xeon E-2276MIntel Xeon E-2276MEIntel Xeon E-2276MLIntel Xeon E-2278GIntel Xeon E-2286GIntel Xeon E-2286MIntel Xeon E-2288GIntel Xeon E3-1220Intel Xeon E3-1220 V2Intel Xeon E3-1220 V3Intel Xeon E3-1220 V5Intel Xeon E3-1220 V6Intel Xeon E3-1220LIntel Xeon E3-1220L v2Intel Xeon E3-1220L v3Intel Xeon E3-1225Intel Xeon E3-1225 V2Intel Xeon E3-1225 V3Intel Xeon E3-1225 V5Intel Xeon E3-1225 V6Intel Xeon E3-1226 V3Intel Xeon E3-1230Intel Xeon E3-1230 V2Intel Xeon E3-1230 V3Intel Xeon E3-1230 V5Intel Xeon E3-1230 V6Intel Xeon E3-1230L v3Intel Xeon E3-1231 V3Intel Xeon E3-1235Intel Xeon E3-1235L V5Intel Xeon E3-1240Intel Xeon E3-1240 V2Intel Xeon E3-1240 V3Intel Xeon E3-1240 V5Intel Xeon E3-1240 V6Intel Xeon E3-1240L V5Intel Xeon E3-1241 V3Intel Xeon E3-1245Intel Xeon E3-1245 V2Intel Xeon E3-1245 V3Intel Xeon E3-1245 V5Intel Xeon E3-1245 V6Intel Xeon E3-1246 V3Intel Xeon E3-1260LIntel Xeon E3-1260L V5Intel Xeon E3-1265L V2Intel Xeon E3-1265L V3Intel Xeon E3-1268L v5Intel Xeon E3-1270Intel Xeon E3-1270 V2Intel Xeon E3-1270 V3Intel Xeon E3-1270 V5Intel Xeon E3-1270 V6Intel Xeon E3-1271 V3Intel Xeon E3-1275Intel Xeon E3-1275 V2Intel Xeon E3-1275 V3Intel Xeon E3-1275 V5Intel Xeon E3-1275 V6Intel Xeon E3-1276 V3Intel Xeon E3-1280Intel Xeon E3-1280 V5Intel Xeon E3-1280 V6Intel Xeon E3-1280 v2Intel Xeon E3-1280 v3Intel Xeon E3-1285 V6Intel Xeon E3-1285 v3Intel Xeon E3-1285 v4Intel Xeon E3-1285L v3Intel Xeon E3-1290Intel Xeon E3-1290 v2Intel Xeon E3-1505L v5Intel Xeon E3-1505L v6Intel Xeon E3-1505M v5Intel Xeon E3-1505M v6Intel Xeon E3-1515M v5Intel Xeon E3-1535M v5Intel Xeon E3-1535M v6Intel Xeon E3-1545M v5Intel Xeon E3-1575M v5Intel Xeon E3-1585 v5Intel Xeon E3-1585L v5Intel Xeon E5-1410Intel Xeon E5-1603 v4Intel Xeon E5-1607 v4Intel Xeon E5-1620Intel Xeon E5-1620 V2Intel Xeon E5-1620 V3Intel Xeon E5-1620 V4Intel Xeon E5-1630 V3Intel Xeon E5-1630 V4Intel Xeon E5-1650Intel Xeon E5-1650 V2Intel Xeon E5-1650 V3Intel Xeon E5-1650 V4Intel Xeon E5-1660Intel Xeon E5-1660 V2Intel Xeon E5-1660 V3Intel Xeon E5-1660 v4Intel Xeon E5-1680 V3Intel Xeon E5-1680 v4Intel Xeon E5-2403Intel Xeon E5-2403 v2Intel Xeon E5-2407Intel Xeon E5-2407 v2Intel Xeon E5-2418LIntel Xeon E5-2420Intel Xeon E5-2420 v2Intel Xeon E5-2420V2Intel Xeon E5-2430Intel Xeon E5-2430 v2Intel Xeon E5-2430LIntel Xeon E5-2430V2Intel Xeon E5-2440Intel Xeon E5-2440 v2Intel Xeon E5-2440V2Intel Xeon E5-2450Intel Xeon E5-2450LIntel Xeon E5-2450V2Intel Xeon E5-2470Intel Xeon E5-2470 v2Intel Xeon E5-2470V2Intel Xeon E5-2603Intel Xeon E5-2603 V2Intel Xeon E5-2603 V3Intel Xeon E5-2603 V4Intel Xeon E5-2608L v3Intel Xeon E5-2609Intel Xeon E5-2609 V2Intel Xeon E5-2609 V3Intel Xeon E5-2609 V4Intel Xeon E5-2618L v3Intel Xeon E5-2618L v4Intel Xeon E5-2620Intel Xeon E5-2620 V2Intel Xeon E5-2620 V3Intel Xeon E5-2620 V4Intel Xeon E5-2622 V3Intel Xeon E5-2623 V3Intel Xeon E5-2623 v4Intel Xeon E5-2628L v3Intel Xeon E5-2628L v4Intel Xeon E5-2630Intel Xeon E5-2630 V2Intel Xeon E5-2630 V3Intel Xeon E5-2630 V4Intel Xeon E5-2630LIntel Xeon E5-2630L V2Intel Xeon E5-2630L V3Intel Xeon E5-2630L v4Intel Xeon E5-2637Intel Xeon E5-2637 V2Intel Xeon E5-2637 V3Intel Xeon E5-2637 v4Intel Xeon E5-2640Intel Xeon E5-2640 V2Intel Xeon E5-2640 V3Intel Xeon E5-2640 V4Intel Xeon E5-2643Intel Xeon E5-2643 V2Intel Xeon E5-2643 V3Intel Xeon E5-2643 V4Intel Xeon E5-2648LIntel Xeon E5-2648L v3Intel Xeon E5-2648L v4Intel Xeon E5-2650Intel Xeon E5-2650 V2Intel Xeon E5-2650 V3Intel Xeon E5-2650 V4Intel Xeon E5-2650LIntel Xeon E5-2650L V2Intel Xeon E5-2650L V3Intel Xeon E5-2650L V4Intel Xeon E5-2658Intel Xeon E5-2658 V3Intel Xeon E5-2658 v4Intel Xeon E5-2660Intel Xeon E5-2660 V2Intel Xeon E5-2660 V3Intel Xeon E5-2660 V4Intel Xeon E5-2665Intel Xeon E5-2667Intel Xeon E5-2667 V2Intel Xeon E5-2667 V3Intel Xeon E5-2667 v4Intel Xeon E5-2670Intel Xeon E5-2670 V2Intel Xeon E5-2670 V3Intel Xeon E5-2673 v4Intel Xeon E5-2679 v4Intel Xeon E5-2680Intel Xeon E5-2680 V2Intel Xeon E5-2680 V3Intel Xeon E5-2680 V4Intel Xeon E5-2682 v4Intel Xeon E5-2683 V3Intel Xeon E5-2683 V4Intel Xeon E5-2685 V3Intel Xeon E5-2686 v4Intel Xeon E5-2687WIntel Xeon E5-2687W V2Intel Xeon E5-2687W V3Intel Xeon E5-2687W V4Intel Xeon E5-2689 v4Intel Xeon E5-2690Intel Xeon E5-2690 V2Intel Xeon E5-2690 V3Intel Xeon E5-2690 V4Intel Xeon E5-2692 v2Intel Xeon E5-2695 V2Intel Xeon E5-2695 V3Intel Xeon E5-2695 V4Intel Xeon E5-2696 v4Intel Xeon E5-2697 V2Intel Xeon E5-2697 V3Intel Xeon E5-2697 V4Intel Xeon E5-2697A v4Intel Xeon E5-2698 V3Intel Xeon E5-2698 V4Intel Xeon E5-2699 V3Intel Xeon E5-2699 V4Intel Xeon E5-4603Intel Xeon E5-4610Intel Xeon E5-4617Intel Xeon E5-4620Intel Xeon E5-4627 v4Intel Xeon E5-4640Intel Xeon E5-4650Intel Xeon E5-4650LIntel Xeon E5-4669 v4Intel Xeon E5502Intel Xeon E5503Intel Xeon E5504Intel Xeon E5506Intel Xeon E5507Intel Xeon E5520Intel Xeon E5530Intel Xeon E5540Intel Xeon E5603Intel Xeon E5606Intel Xeon E5607Intel Xeon E5620Intel Xeon E5630Intel Xeon E5640Intel Xeon E5645Intel Xeon E5649Intel Xeon E7-2850 v2Intel Xeon E7-2870 v2Intel Xeon E7-2880 v2Intel Xeon E7-2890 v2Intel Xeon E7-4809 v2Intel Xeon E7-4820 v2Intel Xeon E7-4830 v2Intel Xeon E7-4850 v2Intel Xeon E7-4860 v2Intel Xeon E7-4870 v2Intel Xeon E7-4880 v2Intel Xeon E7-4890 v2Intel Xeon E7-8850 v2Intel Xeon E7-8857 v2Intel Xeon E7-8870 v2Intel Xeon E7-8880 v2Intel Xeon E7-8880L v2Intel Xeon E7-8890 v2Intel Xeon E7-8891 v2Intel Xeon E7-8893 v2Intel Xeon Gold 5115Intel Xeon Gold 5117Intel Xeon Gold 5117FIntel Xeon Gold 5118Intel Xeon Gold 5119TIntel Xeon Gold 5120Intel Xeon Gold 5120TIntel Xeon Gold 5122Intel Xeon Gold 5215Intel Xeon Gold 5215LIntel Xeon Gold 5215MIntel Xeon Gold 5217Intel Xeon Gold 5218Intel Xeon Gold 5218BIntel Xeon Gold 5218NIntel Xeon Gold 5218RIntel Xeon Gold 5218TIntel Xeon Gold 5219YIntel Xeon Gold 5220Intel Xeon Gold 5220RIntel Xeon Gold 5220SIntel Xeon Gold 5220TIntel Xeon Gold 5222Intel Xeon Gold 6126Intel Xeon Gold 6126FIntel Xeon Gold 6126TIntel Xeon Gold 6128Intel Xeon Gold 6130Intel Xeon Gold 6130FIntel Xeon Gold 6130TIntel Xeon Gold 6132Intel Xeon Gold 6134Intel Xeon Gold 6134MIntel Xeon Gold 6136Intel Xeon Gold 6138Intel Xeon Gold 6138FIntel Xeon Gold 6138TIntel Xeon Gold 6140Intel Xeon Gold 6140MIntel Xeon Gold 6142Intel Xeon Gold 6142FIntel Xeon Gold 6142MIntel Xeon Gold 6144Intel Xeon Gold 6146Intel Xeon Gold 6148Intel Xeon Gold 6148FIntel Xeon Gold 6150Intel Xeon Gold 6152Intel Xeon Gold 6154Intel Xeon Gold 6208UIntel Xeon Gold 6209UIntel Xeon Gold 6210UIntel Xeon Gold 6212UIntel Xeon Gold 6222Intel Xeon Gold 6222VIntel Xeon Gold 6226Intel Xeon Gold 6226RIntel Xeon Gold 6230Intel Xeon Gold 6230NIntel Xeon Gold 6230RIntel Xeon Gold 6230TIntel Xeon Gold 6234Intel Xeon Gold 6238Intel Xeon Gold 6238LIntel Xeon Gold 6238MIntel Xeon Gold 6238RIntel Xeon Gold 6238TIntel Xeon Gold 6240Intel Xeon Gold 6240LIntel Xeon Gold 6240MIntel Xeon Gold 6240RIntel Xeon Gold 6240YIntel Xeon Gold 6242Intel Xeon Gold 6242RIntel Xeon Gold 6244Intel Xeon Gold 6246Intel Xeon Gold 6246RIntel Xeon Gold 6248Intel Xeon Gold 6250Intel Xeon Gold 6250LIntel Xeon Gold 6252Intel Xeon Gold 6252NIntel Xeon Gold 6254Intel Xeon Gold 6256Intel Xeon Gold 6258RIntel Xeon Gold 6262Intel Xeon Gold 6262VIntel Xeon Gold 6269YIntel Xeon L5506Intel Xeon L5520Intel Xeon L5530Intel Xeon L5630Intel Xeon L5638Intel Xeon L5640Intel Xeon Platinum 8124MIntel Xeon Platinum 8153Intel Xeon Platinum 8156Intel Xeon Platinum 8158Intel Xeon Platinum 8160Intel Xeon Platinum 8160FIntel Xeon Platinum 8160MIntel Xeon Platinum 8160TIntel Xeon Platinum 8164Intel Xeon Platinum 8168Intel Xeon Platinum 8170Intel Xeon Platinum 8173MIntel Xeon Platinum 8175MIntel Xeon Platinum 8176Intel Xeon Platinum 8268Intel Xeon Silver 4108Intel Xeon Silver 4109TIntel Xeon Silver 4110Intel Xeon Silver 4112Intel Xeon Silver 4114Intel Xeon Silver 4116Intel Xeon Silver 4208Intel Xeon Silver 4210Intel Xeon Silver 4214Intel Xeon Silver 4215Intel Xeon Silver 4216Intel Xeon W-2102Intel Xeon W-2104Intel Xeon W-2123Intel Xeon W-2125Intel Xeon W-2133Intel Xeon W-2135Intel Xeon W-2140BIntel Xeon W-2145Intel Xeon W-2150BIntel Xeon W-2155Intel Xeon W-2170BIntel Xeon W-2175Intel Xeon W-2191BIntel Xeon W-2195Intel Xeon W-2223Intel Xeon W-2225Intel Xeon W-2235Intel Xeon W-2245Intel Xeon W-2255Intel Xeon W-2265Intel Xeon W-2275Intel Xeon W-2295Intel Xeon W-3175XIntel Xeon W-3235Intel Xeon W-3265Intel Xeon W3503Intel Xeon W3505Intel Xeon W3520Intel Xeon W3530Intel Xeon W3540Intel Xeon W3550Intel Xeon W3565Intel Xeon W3570Intel Xeon W3580Intel Xeon W3670Intel Xeon W3680Intel Xeon W3690Intel Xeon W5580Intel Xeon W5590Intel Xeon X5550Intel Xeon X5560Intel Xeon X5570Intel Xeon X5647Intel Xeon X5650Intel Xeon X5660Intel Xeon X5667Intel Xeon X5670Intel Xeon X5672Intel Xeon X5675Intel Xeon X5677Intel Xeon X5680Intel Xeon X5687Intel Xeon X5690Intel Xeon X5698


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Select a CPU. .AMD A10 Micro-6700TAMD A10 Pro-7350BAMD A10-4600MAMD A10-4655MAMD A10-4657MAMD A10-5700AMD A10-5745MAMD A10-5750MAMD A10-5757MAMD A10-5800KAMD A10-6700AMD A10-6700TAMD A10-6790BAMD A10-6790KAMD A10-6800BAMD A10-6800KAMD A10-7300AMD A10-7350BAMD A10-7400PAMD A10-7700KAMD A10-7800AMD A10-7850KAMD A10-7860kAMD A10-7870KAMD A10-7890KAMD A10-8700PAMD A10-9600PAMD A10-9620PAMD A10-9700AMD A10-9700EAMD A12-9700PAMD A12-9720PAMD A12-9800AMD A12-9800EAMD A4 Micro-6400TAMD A4-1200AMD A4-1250AMD A4-1350AMD A4-3300AMD A4-3300MAMD A4-3305MAMD A4-3310MXAMD A4-3320MAMD A4-3330MXAMD A4-3400AMD A4-3420AMD A4-3450AMD A4-4000AMD A4-4020AMD A4-4300MAMD A4-4355MAMD A4-5000AMD A4-5050AMD A4-5100AMD A4-5145MAMD A4-5150MAMD A4-5300AMD A4-5300BAMD A4-6210AMD A4-6300AMD A4-6300BAMD A4-6320AMD A4-7210AMD A4-7300AMD A4-9120AMD A4-9120CAMD A6 Pro-7050BAMD A6-1450AMD A6-3400MAMD A6-3410MXAMD A6-3420MAMD A6-3430MXAMD A6-3500AMD A6-3600AMD A6-3620AMD A6-3650AMD A6-3670KAMD A6-4400MAMD A6-4455MAMD A6-5200AMD A6-5350MAMD A6-5357MAMD A6-5400BAMD A6-5400KAMD A6-6310AMD A6-6400KAMD A6-6420KAMD A6-7000AMD A6-7050BAMD A6-7310AMD A6-7400KAMD A6-7470KAMD A6-7480AMD A6-8500PAMD A6-9120AMD A6-9120CAMD A6-9210AMD A6-9220AMD A6-9220CAMD A6-9225AMD A6-9500AMD A6-9500EAMD A6-9550AMD A8-3500MAMD A8-3510MXAMD A8-3520MAMD A8-3530MXAMD A8-3550MXAMD A8-3800AMD A8-3820AMD A8-3850AMD A8-3870KAMD A8-4500MAMD A8-4555MAMD A8-5500AMD A8-5500BAMD A8-5545MAMD A8-5550MAMD A8-5557MAMD A8-5600KAMD A8-6410AMD A8-6500AMD A8-6500TAMD A8-6600KAMD A8-7100AMD A8-7150BAMD A8-7200PAMD A8-7410AMD A8-7600AMD A8-7650KAMD A8-7670KAMD A8-7680AMD A8-8600PAMD A8-9600AMD A9-9410AMD A9-9420AMD A9-9420eAMD A9-9425AMD Athlon 200GEAMD Athlon 220GEAMD Athlon 240GEAMD Athlon 3000GAMD Athlon 300UAMD Athlon 5150AMD Athlon 5350AMD Athlon 5370AMD Athlon 64 2000+AMD Athlon 64 2600+AMD Athlon 64 2800+AMD Athlon 64 3000+AMD Athlon 64 3200+AMD Athlon 64 3300+AMD Athlon 64 3400+AMD Athlon 64 3500+AMD Athlon 64 3600+AMD Athlon 64 3700+AMD Athlon 64 3800+AMD Athlon 64 4000+AMD Athlon 64 FX-51AMD Athlon 64 FX-53AMD Athlon 64 FX-55AMD Athlon 64 FX-57AMD Athlon 64 FX-60AMD Athlon 64 FX-62AMD Athlon 64 FX-72AMD Athlon 64 FX-74AMD Athlon 64 TF-20AMD Athlon 64 X2 3600+AMD Athlon 64 X2 3800+AMD Athlon 64 X2 4000+AMD Athlon 64 X2 4200+AMD Athlon 64 X2 4400+AMD Athlon 64 X2 4600+AMD Athlon 64 X2 4800+AMD Athlon 64 X2 5000+AMD Athlon 64 X2 5200+AMD Athlon 64 X2 5400+AMD Athlon 64 X2 5600+AMD Athlon 64 X2 5800+AMD Athlon 64 X2 6000+AMD Athlon 64 X2 FX-60AMD Athlon 64 X2 TK-42AMD Athlon 64 X2 TK-53AMD Athlon 64 X2 TK-55AMD Athlon 64 X2 TK-57AMD Athlon Gold 3150UAMD Athlon II 160uAMD Athlon II M300AMD Athlon II M320AMD Athlon II M340AMD Athlon II N330AMD Athlon II N350AMD Athlon II N370AMD Athlon II Neo K125AMD Athlon II Neo K145AMD Athlon II Neo K325AMD Athlon II Neo K345AMD Athlon II P320AMD Athlon II P340AMD Athlon II P360AMD Athlon II X2 210eAMD Athlon II X2 215AMD Athlon II X2 220AMD Athlon II X2 221AMD Athlon II X2 235eAMD Athlon II X2 240AMD Athlon II X2 240eAMD Athlon II X2 245AMD Athlon II X2 245eAMD Athlon II X2 250AMD Athlon II X2 250eAMD Athlon II X2 250uAMD Athlon II X2 255AMD Athlon II X2 260AMD Athlon II X2 260uAMD Athlon II X2 265AMD Athlon II X2 270AMD Athlon II X2 270uAMD Athlon II X2 280AMD Athlon II X2 340AMD Athlon II X2 370KAMD Athlon II X3 400eAMD Athlon II X3 405eAMD Athlon II X3 415eAMD Athlon II X3 420eAMD Athlon II X3 425AMD Athlon II X3 425eAMD Athlon II X3 435AMD Athlon II X3 440AMD Athlon II X3 445AMD Athlon II X3 450AMD Athlon II X3 455AMD Athlon II X3 460AMD Athlon II X4 600eAMD Athlon II X4 605eAMD Athlon II X4 610eAMD Athlon II X4 615eAMD Athlon II X4 620AMD Athlon II X4 620eAMD Athlon II X4 630AMD Athlon II X4 631AMD Athlon II X4 635AMD Athlon II X4 638AMD Athlon II X4 640AMD Athlon II X4 641AMD Athlon II X4 645AMD Athlon II X4 651AMD Athlon II X4 651KAMD Athlon II X4 740AMD Athlon II X4 750KAMD Athlon II X4 760KAMD Athlon II X4 860KAMD Athlon MP 2400+AMD Athlon MP 2800+AMD Athlon Neo MV-40AMD Athlon Neo X2 L325AMD Athlon Neo X2 L335AMD Athlon PRO 200GEAMD Athlon PRO 300GEAMD Athlon PRO 300UAMD Athlon Silver 3050UAMD Athlon X2 340AMD Athlon X2 350AMD Athlon X2 370KAMD Athlon X2 450AMD Athlon X2 BE-2300AMD Athlon X2 BE-2350AMD Athlon X2 BE-2400AMD Athlon X2 L310AMD Athlon X2 QL-60AMD Athlon X2 QL-64AMD Athlon X2 QL-65AMD Athlon X2 QL-66AMD Athlon X4 530AMD Athlon X4 550AMD Athlon X4 740AMD Athlon X4 750KAMD Athlon X4 760KAMD Athlon X4 835AMD Athlon X4 840AMD Athlon X4 845AMD Athlon X4 860KAMD Athlon X4 870KAMD Athlon X4 880KAMD Athlon X4 940AMD Athlon X4 950AMD Athlon X4 970AMD Athlon XP 1500+AMD Athlon XP 1600+AMD Athlon XP 1700+AMD Athlon XP 1800+AMD Athlon XP 1900+AMD Athlon XP 2000+AMD Athlon XP 2100+AMD Athlon XP 2200+AMD Athlon XP 2400+AMD Athlon XP 2500+AMD Athlon XP 2600+AMD Athlon XP 2700+AMD Athlon XP 2800+AMD Athlon XP 3000+AMD Athlon XP 3100+AMD Athlon XP 3200+AMD C-30AMD C-50AMD C-60AMD C-70AMD E-240AMD E-300AMD E-350AMD E-350DAMD E-450AMD E-Series E-450AMD E1-1200AMD E1-1500AMD E1-2100AMD E1-2200AMD E1-2500AMD E1-6010AMD E2-1800AMD E2-2000AMD E2-3000AMD E2-3000MAMD E2-3200AMD E2-3300MAMD E2-3800AMD E2-6110AMD E2-7110AMD E2-9000AMD E2-9010AMD EPYC 7371AMD Epyc 7232PAMD Epyc 7252AMD Epyc 7262AMD Epyc 7272AMD Epyc 7281AMD Epyc 7282AMD Epyc 7301AMD Epyc 7302AMD Epyc 7302PAMD Epyc 7351AMD Epyc 7351PAMD Epyc 7352AMD Epyc 7401AMD Epyc 7401PAMD Epyc 7402AMD Epyc 7402PAMD Epyc 7451AMD Epyc 7452AMD Epyc 7501AMD Epyc 7502AMD Epyc 7502PAMD Epyc 7532AMD Epyc 7542AMD Epyc 7551AMD Epyc 7551PAMD Epyc 7552AMD Epyc 7601AMD Epyc 7642AMD Epyc 7662AMD Epyc 7702AMD Epyc 7702PAMD Epyc 7742AMD FX-4100AMD FX-4130AMD FX-4150AMD FX-4170AMD FX-4200AMD FX-4300AMD FX-4320AMD FX-4350AMD FX-6100AMD FX-6120AMD FX-6130AMD FX-6200AMD FX-6300AMD FX-6330AMD FX-6350AMD FX-7500AMD FX-7600PAMD FX-8100AMD FX-8120AMD FX-8140AMD FX-8150AMD FX-8300AMD FX-8310AMD FX-8320AMD FX-8320EAMD FX-8350AMD FX-8370AMD FX-8370EAMD FX-8800PAMD FX-9370AMD FX-9590AMD FX-9800PAMD FX-9830PAMD G-T16RAMD G-T24LAMD G-T30LAMD G-T40EAMD G-T40NAMD G-T40RAMD G-T44RAMD G-T48EAMD G-T48LAMD G-T48NAMD G-T52RAMD G-T56EAMD G-T56NAMD Mobile Athlon 64 2700+AMD Mobile Athlon 64 2800+AMD Mobile Athlon 64 3000+AMD Mobile Athlon 64 3200+AMD Mobile Athlon 64 3400+AMD Mobile Athlon 64 3700+AMD Mobile Athlon 64 4000+AMD Mobile Sempron 210UAMD Mobile Sempron 2600+AMD Mobile Sempron 2800+AMD Mobile Sempron 3000+AMD Mobile Sempron 3100+AMD Mobile Sempron 3200+AMD Mobile Sempron 3300+AMD Mobile Sempron 3400+AMD Mobile Sempron 3500+AMD Mobile Sempron 3600+AMD Mobile Sempron 3800+AMD Mobile Sempron M100AMD Mobile Sempron SI-40AMD Mobile Sempron SI-42AMD Opteron 140AMD Opteron 142AMD Opteron 144AMD Opteron 146AMD Opteron 148AMD Opteron 150AMD Opteron 152AMD Opteron 154AMD Opteron 246AMD Opteron 248AMD Opteron 250AMD Opteron 252AMD Opteron 254AMD Opteron 3280AMD Opteron 3320 EEAMD Opteron 3350 HEAMD Opteron 3380AMD Opteron 4332 HEAMD Opteron 4334AMD Opteron 4386AMD Opteron 6272AMD Opteron 6274AMD Opteron 6276AMD Opteron 6282 SEAMD Opteron 6320AMD Opteron 6328AMD Opteron 6344AMD Opteron 6366 HEAMD Opteron 6376AMD Opteron 6378AMD Opteron 6380AMD Opteron 6386 SEAMD PRO A12-9800BAMD PRO A8-9600BAMD Phenom II 42 TWKR Black EditionAMD Phenom II X2 511AMD Phenom II X2 521AMD Phenom II X2 545AMD Phenom II X2 550AMD Phenom II X2 550 BlackAMD Phenom II X2 555AMD Phenom II X2 555 BlackAMD Phenom II X2 560AMD Phenom II X2 560 BlackAMD Phenom II X2 565AMD Phenom II X2 565 BlackAMD Phenom II X2 B53AMD Phenom II X2 B55AMD Phenom II X2 B57AMD Phenom II X2 B59AMD Phenom II X2 N620AMD Phenom II X2 N640AMD Phenom II X2 X640 BEAMD Phenom II X3 700eAMD Phenom II X3 705eAMD Phenom II X3 710AMD Phenom II X3 715AMD Phenom II X3 715 BlackAMD Phenom II X3 720AMD Phenom II X3 720 BlackAMD Phenom II X3 740AMD Phenom II X3 740 BlackAMD Phenom II X3 B73AMD Phenom II X3 B75AMD Phenom II X3 B77AMD Phenom II X3 N830AMD Phenom II X3 N850AMD Phenom II X3 N870AMD Phenom II X3 P820AMD Phenom II X3 P840AMD 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i7-2620MIntel Core i7-2630QMIntel Core i7-2635QMIntel Core i7-2637MIntel Core i7-2640MIntel Core i7-2655LEIntel Core i7-2657MIntel Core i7-2670QMIntel Core i7-2675QMIntel Core i7-2677MIntel Core i7-2700KIntel Core i7-2710QEIntel Core i7-2715QEIntel Core i7-2720QMIntel Core i7-2760QMIntel Core i7-2820QMIntel Core i7-2840QMIntel Core i7-2860QMIntel Core i7-2920XMIntel Core i7-2960XMIntel Core i7-3517UIntel Core i7-3517UEIntel Core i7-3520MIntel Core i7-3537UIntel Core i7-3540MIntel Core i7-3555LEIntel Core i7-3610QEIntel Core i7-3610QMIntel Core i7-3612QEIntel Core i7-3612QMIntel Core i7-3615QEIntel Core i7-3615QMIntel Core i7-3630QMIntel Core i7-3632QMIntel Core i7-3635QMIntel Core i7-3667UIntel Core i7-3687UIntel Core i7-3689YIntel Core i7-3720QMIntel Core i7-3740QMIntel Core i7-3770Intel Core i7-3770KIntel Core i7-3770SIntel Core i7-3770TIntel Core i7-3820Intel Core i7-3820QMIntel Core i7-3840QMIntel Core i7-3920XMIntel Core i7-3930KIntel Core i7-3940XMIntel Core i7-3960XIntel Core 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Core i7-940Intel Core i7-940XMIntel Core i7-950Intel Core i7-960Intel Core i7-965Intel Core i7-965 Extreme EditionIntel Core i7-970Intel Core i7-9700Intel Core i7-9700FIntel Core i7-9700KIntel Core i7-9700KFIntel Core i7-9700TIntel Core i7-975Intel Core i7-975 Extreme EditionIntel Core i7-9750HIntel Core i7-9750HFIntel Core i7-980Intel Core i7-9800XIntel Core i7-980XIntel Core i7-980X EEIntel Core i7-980X Extreme EditionIntel Core i7-9850HIntel Core i7-990XIntel Core i7-990X EEIntel Core i7-990X Extreme EditionIntel Core i9-10875HIntel Core i9-10900Intel Core i9-10900FIntel Core i9-10900KIntel Core i9-10900KFIntel Core i9-10900XIntel Core i9-10920XIntel Core i9-10940XIntel Core i9-10980HKIntel Core i9-10980XEIntel Core i9-11900Intel Core i9-11900KIntel Core i9-12900KIntel Core i9-13900KIntel Core i9-7900XIntel Core i9-7920XIntel Core i9-7940XIntel Core i9-7960XIntel Core i9-7980XEIntel Core i9-8950HKIntel Core i9-9800XIntel Core i9-9820XIntel Core i9-9880HIntel Core i9-9900Intel Core i9-9900KIntel Core i9-9900KFIntel Core i9-9900KSIntel Core i9-9900TIntel Core i9-9900XIntel Core i9-9920XIntel Core i9-9940XIntel Core i9-9960XIntel Core i9-9980HKIntel Core i9-9980XEIntel Core m3-6Y30Intel Core m3-7Y30Intel Core m3-7Y32Intel Core m3-8100YIntel Core m5-6Y54Intel Core m5-6Y57Intel Core m7-6Y75Intel Core2 Duo E6700Intel Mobile Pentium 4 2. 40Intel Mobile Pentium 4 2.66Intel Mobile Pentium 4 2.80Intel Mobile Pentium 4 3.06Intel Mobile Pentium 4 520Intel Mobile Pentium 4 532Intel Mobile Pentium 4 552Intel Pentium 2020MIntel Pentium 2030MIntel Pentium 2117UIntel Pentium 2127UIntel Pentium 2129YIntel Pentium 3550MIntel Pentium 3556UIntel Pentium 3558UIntel Pentium 3560MIntel Pentium 3560YIntel Pentium 3805UIntel Pentium 3825UIntel Pentium 4 1.80Intel Pentium 4 2.26Intel Pentium 4 2.4 GHzIntel Pentium 4 2.40Intel Pentium 4 2.53Intel Pentium 4 2.60Intel Pentium 4 2.66Intel Pentium 4 2.80Intel Pentium 4 560Intel Pentium 4 630Intel Pentium 4 660Intel Pentium 4 P4 3.0Intel Pentium 4-M P4-M 1,7Intel Pentium 4405UIntel Pentium 4405YIntel Pentium 4415UIntel Pentium 957Intel Pentium 967Intel Pentium 977Intel Pentium 987Intel Pentium 997Intel Pentium B940Intel Pentium B950Intel Pentium B960Intel Pentium B970Intel Pentium B980Intel Pentium D 820Intel Pentium D 830Intel Pentium D 915Intel Pentium D 940Intel Pentium D 950Intel Pentium D 960Intel Pentium Dual Core SU4100Intel Pentium Dual Core T2060Intel Pentium Dual Core T2080Intel Pentium Dual Core T2130Intel Pentium Dual Core T2310Intel Pentium Dual Core T2330Intel Pentium Dual Core T2370Intel Pentium Dual Core T2390Intel Pentium Dual Core T2410Intel Pentium Dual Core T3200Intel Pentium Dual Core T3400Intel Pentium Dual-Core T4200Intel Pentium Dual-Core T4300Intel Pentium Dual-Core T4400Intel Pentium Dual-Core T4500Intel Pentium Dual-Core E2140Intel Pentium Dual-Core E2160Intel Pentium Dual-Core E2180Intel Pentium Dual-Core E2200Intel Pentium Dual-Core E2210Intel Pentium Dual-Core E2220Intel Pentium E2140Intel Pentium E2160Intel Pentium E2180Intel Pentium E2200Intel Pentium E2220Intel Pentium E5200Intel Pentium E5300Intel Pentium E5400Intel Pentium E5500Intel Pentium E5700Intel Pentium E5800Intel Pentium E6300Intel Pentium E6500Intel Pentium E6600Intel Pentium E6700Intel Pentium E6800Intel Pentium G2010Intel Pentium G2020Intel Pentium G2020TIntel Pentium G2030Intel Pentium G2100TIntel Pentium G2120Intel Pentium G2130Intel Pentium G2140Intel Pentium G3220Intel Pentium G3220TIntel Pentium G3240Intel Pentium G3240TIntel Pentium G3250Intel Pentium G3250TIntel Pentium G3258Intel Pentium G3260Intel Pentium G3420Intel Pentium G3420TIntel Pentium G3430Intel Pentium G3440Intel Pentium G3440TIntel Pentium G3450Intel Pentium G3450TIntel Pentium G3460Intel Pentium G3470Intel Pentium G4400Intel Pentium G4400TIntel Pentium G4400TEIntel Pentium G4500Intel Pentium G4500TIntel Pentium G4520Intel Pentium G4560Intel Pentium G4560TIntel Pentium G4600Intel Pentium G4600TIntel Pentium G4620Intel Pentium G550Intel Pentium G620Intel Pentium G620TIntel Pentium G630Intel Pentium G630TIntel Pentium G640Intel Pentium G640TIntel Pentium G645Intel Pentium G645TIntel Pentium G6950Intel Pentium G6951Intel Pentium G6960Intel Pentium G840Intel Pentium G850Intel Pentium G860Intel Pentium G870Intel Pentium Gold 4410YIntel Pentium Gold 4415UIntel Pentium Gold 4415YIntel Pentium Gold 4417UIntel Pentium Gold 4425YIntel Pentium Gold 5405UIntel Pentium Gold 6405UIntel Pentium Gold G5400Intel Pentium Gold G5400TIntel Pentium Gold G5420Intel Pentium Gold G5420TIntel Pentium Gold G5500Intel Pentium Gold G5500TIntel Pentium Gold G5600Intel Pentium Gold G5620Intel Pentium III 1133Intel Pentium III 1200Intel Pentium III 1266SIntel Pentium III 1400Intel Pentium III 1400SIntel Pentium J2850Intel Pentium J2900Intel Pentium J3710Intel Pentium J4205Intel Pentium M 1. 30Intel Pentium M 1.40Intel Pentium M 1.50Intel Pentium M 1.60Intel Pentium M 1.70Intel Pentium M 1300Intel Pentium M 705Intel Pentium M 710Intel Pentium M 715Intel Pentium M 718Intel Pentium M 725Intel Pentium M 730Intel Pentium M 735Intel Pentium M 738Intel Pentium M 740Intel Pentium M 745Intel Pentium M 750Intel Pentium M 753Intel Pentium M 758Intel Pentium M 760Intel Pentium M 765Intel Pentium M 770Intel Pentium M 780Intel Pentium N3510Intel Pentium N3520Intel Pentium N3530Intel Pentium N3540Intel Pentium N3700Intel Pentium N3710Intel Pentium N4200Intel Pentium P6000Intel Pentium P6100Intel Pentium P6200Intel Pentium P6300Intel Pentium SU2700Intel Pentium SU4100Intel Pentium Silver J5005Intel Pentium Silver J5040Intel Pentium Silver N5000Intel Pentium Silver N5030Intel Pentium U5400Intel Pentium U5600Intel Xeon 2.66Intel Xeon 3.06Intel Xeon 3.20Intel Xeon 5110Intel Xeon 5120Intel Xeon 5130Intel Xeon 5140Intel Xeon 5148Intel Xeon 5150Intel Xeon 5160Intel Xeon Bronze 3104Intel Xeon Bronze 3106Intel Xeon D-1518Intel Xeon D-1520Intel Xeon D-1521Intel Xeon D-1528Intel Xeon D-1531Intel Xeon D-1537Intel Xeon D-1539Intel Xeon D-1540Intel Xeon D-1541Intel Xeon D-1548Intel Xeon D-1557Intel Xeon D-1559Intel Xeon D-1567Intel Xeon D-1587Intel Xeon D-2123ITIntel Xeon D-2141IIntel Xeon D-2143ITIntel Xeon D-2146NTIntel Xeon D-2183ITIntel Xeon E-2104GIntel Xeon E-2124Intel Xeon E-2124GIntel Xeon E-2126GIntel Xeon E-2134Intel Xeon E-2136Intel Xeon E-2144GIntel Xeon E-2146GIntel Xeon E-2174GIntel Xeon E-2176GIntel Xeon E-2176MIntel Xeon E-2186GIntel Xeon E-2186MIntel Xeon E-2224Intel Xeon E-2224GIntel Xeon E-2226GIntel Xeon E-2236Intel Xeon E-2244GIntel Xeon E-2246GIntel Xeon E-2274GIntel Xeon E-2276GIntel Xeon E-2276MIntel Xeon E-2276MEIntel Xeon E-2276MLIntel Xeon E-2278GIntel Xeon E-2286GIntel Xeon E-2286MIntel Xeon E-2288GIntel Xeon E3-1220Intel Xeon E3-1220 V2Intel Xeon E3-1220 V3Intel Xeon E3-1220 V5Intel Xeon E3-1220 V6Intel Xeon E3-1220LIntel Xeon E3-1220L v2Intel Xeon E3-1220L v3Intel Xeon E3-1225Intel Xeon E3-1225 V2Intel Xeon E3-1225 V3Intel Xeon E3-1225 V5Intel Xeon E3-1225 V6Intel Xeon E3-1226 V3Intel Xeon E3-1230Intel Xeon E3-1230 V2Intel Xeon E3-1230 V3Intel Xeon E3-1230 V5Intel Xeon E3-1230 V6Intel Xeon E3-1230L v3Intel Xeon E3-1231 V3Intel Xeon E3-1235Intel Xeon E3-1235L V5Intel Xeon E3-1240Intel Xeon E3-1240 V2Intel Xeon E3-1240 V3Intel Xeon E3-1240 V5Intel Xeon E3-1240 V6Intel Xeon E3-1240L V5Intel Xeon E3-1241 V3Intel Xeon E3-1245Intel Xeon E3-1245 V2Intel Xeon E3-1245 V3Intel Xeon E3-1245 V5Intel Xeon E3-1245 V6Intel Xeon E3-1246 V3Intel Xeon E3-1260LIntel Xeon E3-1260L V5Intel Xeon E3-1265L V2Intel Xeon E3-1265L V3Intel Xeon E3-1268L v5Intel Xeon E3-1270Intel Xeon E3-1270 V2Intel Xeon E3-1270 V3Intel Xeon E3-1270 V5Intel Xeon E3-1270 V6Intel Xeon E3-1271 V3Intel Xeon E3-1275Intel Xeon E3-1275 V2Intel Xeon E3-1275 V3Intel Xeon E3-1275 V5Intel Xeon E3-1275 V6Intel Xeon E3-1276 V3Intel Xeon E3-1280Intel Xeon E3-1280 V5Intel Xeon E3-1280 V6Intel Xeon E3-1280 v2Intel Xeon E3-1280 v3Intel Xeon E3-1285 V6Intel Xeon E3-1285 v3Intel Xeon E3-1285 v4Intel Xeon E3-1285L v3Intel Xeon E3-1290Intel Xeon E3-1290 v2Intel Xeon E3-1505L v5Intel Xeon E3-1505L v6Intel Xeon E3-1505M v5Intel Xeon E3-1505M v6Intel Xeon E3-1515M v5Intel Xeon E3-1535M v5Intel Xeon E3-1535M v6Intel Xeon E3-1545M v5Intel Xeon E3-1575M v5Intel Xeon E3-1585 v5Intel Xeon E3-1585L v5Intel Xeon E5-1410Intel Xeon E5-1603 v4Intel Xeon E5-1607 v4Intel Xeon E5-1620Intel Xeon E5-1620 V2Intel Xeon E5-1620 V3Intel Xeon E5-1620 V4Intel Xeon E5-1630 V3Intel Xeon E5-1630 V4Intel Xeon E5-1650Intel Xeon E5-1650 V2Intel Xeon E5-1650 V3Intel Xeon E5-1650 V4Intel Xeon E5-1660Intel Xeon E5-1660 V2Intel Xeon E5-1660 V3Intel Xeon E5-1660 v4Intel Xeon E5-1680 V3Intel Xeon E5-1680 v4Intel Xeon E5-2403Intel Xeon E5-2403 v2Intel Xeon E5-2407Intel Xeon E5-2407 v2Intel Xeon E5-2418LIntel Xeon E5-2420Intel Xeon E5-2420 v2Intel Xeon E5-2420V2Intel Xeon E5-2430Intel Xeon E5-2430 v2Intel Xeon E5-2430LIntel Xeon E5-2430V2Intel Xeon E5-2440Intel Xeon E5-2440 v2Intel Xeon E5-2440V2Intel Xeon E5-2450Intel Xeon E5-2450LIntel Xeon E5-2450V2Intel Xeon 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AMD Epyc 7251 — review.

CPU Benchmark & Specs

The processor AMD Epyc 7251 is developed on the 14 nm technology node and architecture Zen. Its base clock speed is 2.10 GHz, and maximum clock speed in turbo boost — 2.90 GHz. AMD Epyc 7251 contains 8 processing cores. To make a right choice for computer upgrading, please get familiar with the detailed technical specifications and benchmark results. Check socket compatibility before choosing.




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2x 2.60 GHz (3.50 GHz) HT




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8x 1. 80 GHz (4.30 GHz) HT




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2x 2.30 GHz (3.20 GHz)




Intel Core i3-1115G4
2x 1.70 GHz (4.10 GHz) HT




Intel Core i5-1135G7
4x 2.40 GHz (4.00 GHz) HT




AMD Ryzen 5 4600G
6x 3. 70 GHz (4.20 GHz) HT




Intel Celeron N4500
2x 1.10 GHz (2.90 GHz)

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AliExpress

General info

The base and maximum clock speed of the CPU AMD Epyc 7251, number of processing cores and threads.

CPU Cores and Base Frequency

The general performance of a CPU can easily be determined based on the number of its cores and the thread count, as well as the base frequency and Turbo frequency. The more GHz and cores a CPU has, the better. Please note that high technical specs require using a powerful cooling system and a quality chipset (check VRM on the motherboard).





Frequency: 2.10 GHz   CPU Cores: 8
Turbo (1 Core): 2.90 GHz   CPU Threads: 16
Hyperthreading: Yes   Overclocking: No
Turbo (8 Cores): 2. 90 GHz  

Internal Graphics

Some manufacturers complement their CPUs with graphic chips, such a solution being especially popular in laptops. The higher the clock frequency of a GPU is and the bigger its memory, the better.


GPU (Turbo): No turbo   Max. Memory:

Hardware codec support

Here we deal with specs that are used by some CPU manufacturers. These numbers are mainly technical and can be neglected for the purpose of the comparison analysis.









h364: No
JPEG: No
h365 8bit: No
h365 10bit: No
VP8: No
VP9: No
VC-1: No
AVC: No

Memory & PCIe

These are memory standards supported by CPUs. The higher such standards, the better a CPU’s performance is.




Memory type: DDR4-2666   Memory channels: 8
ECC: Yes   PCIe version: 3. 0
PCIe lanes: 128  

Encryption

Data encryption support


AES-NI: Yes  

Thermal Management



TDP: 120 W   Tjunction max. :
TDP up:   TDP down:

Technical details

These are key parameters that will help you determine which CPU is better. Pay special attention to the release date, technological aspects of the manufacturing process (measured in nanometers), and the third-level cache (L3).





L3-Cache: 32.00 MB   Technology: 14 nm
Architecture: Zen   Virtualization: AMD-V, SEV
Socket: SP3   Release date: Q3/2017
Market price: ca. 450 $  

Devices using this processor

You probably know already what devices use CPUs. These can be a desktop or a laptop.


Used in: Unknown


This synthetic test will help you determine the real computing power of a single core in the central processing unit. Cinebench R11.5 is based on MAXON CINEMA 4D and employs various testing scenarios



Intel Core i5-4570
4x 3. 20 GHz (3.60 GHz)



Intel Pentium G4600T
2x 3.00 GHz (No turbo) HT



AMD Epyc 7251
8x 2.10 GHz (2.90 GHz) HT



Intel Xeon E3-1235L v5
4x 2. 00 GHz (3.00 GHz)



Intel Core i7-5850EQ
4x 2.70 GHz (3.40 GHz) HT

Cinebench R11.5 carries out simultaneous cross-platform tests on all the processor’s cores. By running realistic 3D scenes, this benchmark will reveal all the potential of your Intel or AMD single-unit processor



Intel Xeon E5-2650 v2
8x 2.60 GHz (3.40 GHz) HT



Intel Core i7-5820K
6x 3. 30 GHz (3.60 GHz) HT



AMD Epyc 7251
8x 2.10 GHz (2.90 GHz) HT



Intel Core i7-7700K
4x 4.20 GHz (4.50 GHz) HT



Intel Core i7-4930K
6x 3. 40 GHz (3.90 GHz) HT

The latter is used for creation of 3D models and forms. Cinebench R15 is used for single-core processor performance benchmark test. The hyperthreading ability doesn’t count. It is the updated version of Cinebench 11.5. As all new versions, the updated benchmark is based on Cinema 4 Suite software



AMD Ryzen 3 PRO 2200U
2x 2.50 GHz (3.40 GHz) HT



AMD Ryzen 3 2200U
2x 2.50 GHz (3. 40 GHz) HT



AMD Epyc 7251
8x 2.10 GHz (2.90 GHz) HT



Intel Xeon E5-2695 v3
14x 2.30 GHz (3.30 GHz) HT



Intel Xeon E5-2680 v3
12x 2. 50 GHz (3.30 GHz) HT

Cinebench R15 can be used for multi-core processor performance benchmark testing. The test produces precise and accurate results. This benchmark is the updated version of the Cinebench 11.5 which is based on Cinema 4 Suite soft.



AMD Ryzen 5 Pro 1600
6x 3.20 GHz (3.60 GHz) HT



AMD Ryzen 5 1600
6x 3.20 GHz (3.60 GHz) HT



AMD Epyc 7251
8x 2. 10 GHz (2.90 GHz) HT



Intel Xeon E5-1660 v2
6x 3.70 GHz (4.00 GHz) HT



Intel Core i7-4960X
6x 3.60 GHz (4.00 GHz) HT

Geekbench 3 is the benchmark for Intel and AMD 64-bit processors. It employs a new power estimation system for a single CPU core. This software carries out the modeling of real scenarios to provide accurate results



Intel Core i5-5575R
4x 2. 80 GHz (3.30 GHz)



Intel Core i3-4360T
2x 3.20 GHz (No turbo) HT



AMD Epyc 7251
8x 2.10 GHz (2.90 GHz) HT



Intel Core i3-8300T
4x 3. 20 GHz (No turbo)



Intel Xeon E5-2630L v4
10x 1.80 GHz (2.90 GHz) HT

Geekbench 3 benchmark supports AMD and Intel multi-core processors. Being based on MAXON CINEMA 4D, it allows obtaining the real comparative CPU potential



Intel Core i5-8600
6x 3.10 GHz (4.20 GHz)



Intel Xeon E5-2620 v3
6x 2. 40 GHz (3.20 GHz) HT



AMD Epyc 7251
8x 2.10 GHz (2.90 GHz) HT



Intel Core i5-8400
6x 2.80 GHz (3.80 GHz)



Intel Xeon E5-1660 v2
6x 3. 70 GHz (4.00 GHz) HT

It tests entire and overall performance of the central processing unit (mathematical calculations, compression and decompression speed, 2D&3D graphic tests). Please note that data can differ from the real-world situations.



Intel Core i7-7740X
4x 4.30 GHz (4.50 GHz) HT



Intel Core i5-8600
6x 3.10 GHz (4.20 GHz)



AMD Epyc 7251
8x 2. 10 GHz (2.90 GHz) HT



Intel Core i5-8400
6x 2.80 GHz (3.80 GHz)



Intel Core i5-9600T
6x 2.30 GHz (3.90 GHz)



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AMD Epyc 7251 Processor in 6 benchmarks

It is a review of AMD Epyc 7251 CPU in which you will learn its technical specifications and 6 benchmarks.


Its standard number of cores is 8. The base clock speed of AMD Epyc 7251 is 2.10 GHz whilst its clock speed in turbo boost is 2.90 GHz.


AMD Epyc 7251 support the DDR4-2666 chanel ram. The architecture of Naples (Zen) is made on the  technology node.

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Compare AMD Epyc 7251

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AMD Epyc 7251 specs and benchmark performance

AMD Epyc 7251 review will present you all the benefits and drawbacks of the model’s performance and speed. To define the best CPU, we recommend checking benchmark results and compare them to another model.

CPU Cores and Base Frequency AMD Epyc 7251

Technical characteristics presented below are basic and influence mostly the general performance while working and playing games. It is based on the “more-better” principle. 

Cores: 8x
CPU Cores / Threads: 8 / 16
Core architecture: normal
Hyperthreading: Yes
Overclocking: No
Frequency: 2. 10 GHz
Turbo Frequency (1 Core): 2.90 GHz
Turbo Frequency (8 Cores): 2.90 GHz

CPU generation and family AMD Epyc 7251

Name: AMD Epyc 7251
Family: AMD Epyc
CPU group: AMD Epyc 7001
Segment: Desktop / Server
Predecessor:
Successor:

Internal Graphics AMD Epyc 7251

The manufacturer has equipped CPU with a built-in graphics card being an additional advantage. Note please its manufacturing technological process and clock frequency.

GPU name: no iGPU
GPU (Turbo): No turbo
Max. GPU Memory:
Direct X:

Hardware codec support AMD Epyc 7251

Here are useful figures which CPU can boast in our review. It is technical information you can skip.

h365 / HEVC (8 bit): No
h365 / HEVC (10 bit): No
h364: No
VP8: No
VP9: No
AV1: No
AVC: No
VC-1: No
JPEG: No

Memory & PCIe AMD Epyc 7251

A CPU is a device using mostly all capacity of the system for increasing speed and efficiency to operate. So, the more modern a memory standard and the bigger its maximum supported storage are, the better it is.

Memory type: DDR4-2666
Memory channels: 8
Bandwidth:
ECC: Yes
PCIe: 3. 0 x 128
AES-NI: Yes

Thermal Management AMD Epyc 7251

A standard power supply may be quite enough for low-performing and old processors, yet modern chips may need a strong cooling system and powerful power supply. To define it, pay attention please to the TDP figure and maximum temperature in operating mode. 

TDP (PL1): 120 W
TDP (PL2):
TDP up:
TDP down:
Tjunction max. :

Technical details AMD Epyc 7251

Here is the key information of processor. It presents L2 and L3 cash data, a socket supported by the motherboard, date of manufacture and the set of the ISA compatible instructions.

Instruction set (ISA): x86-64 (64 bit)
ISA extensions: SSE4a, SSE4. 1, SSE4.2, AVX2, FMA3
L2-Cache:
L3-Cache: 32.00 MB
Architecture: Naples (Zen)
Virtualization: AMD-V, SVM
Socket: SP3
Part Number:

Cinebench R15 (Multi-Core) — AMD Epyc 7251

Cinebench R15 benchmark reflects the efficiency of your processor operation in assessment mode. It works on Cinema 4 Suite software complex of the earlier version. Hyperthreading is not included.

AMD Ryzen 5 Pro 1600
6x 3.20 GHz (3.60 GHz) HT

AMD Ryzen 5 1600
6x 3.20 GHz (3.60 GHz) HT

AMD Epyc 7251
2.10 GHz

Intel Core i7-4960X
3. 60 GHz

Intel Xeon E5-1660 v2
6x 3.70 GHz (4.00 GHz) HT

Geekbench 3, 64bit (Single-Core) — AMD Epyc 7251

To define how efficient and powerful a processor is among several models or in comparison with another, we recommend paying attention to Geekbench 3 benchmark, which tests the single-core processor performance.

Intel Core i5-5575R
4x 2.80 GHz (3.30 GHz)

Intel Core i3-4360T
2x 3. 20 GHz (No turbo) HT

AMD Epyc 7251
2.10 GHz

Intel Core i3-8300T
4x 3.20 GHz (No turbo)

Intel Xeon E5-2630L v4
1.80 GHz

Geekbench 3, 64bit (Multi-Core) — AMD Epyc 7251

To reveal the whole potential of the equipment, the Geekbench 3 benchmark uses all cores for 64bit models in a specialised software complex that imitates modelling various 3D scenarios. The higher estimation is, the better the performance is.

Intel Xeon E5-2620 v3
2.40 GHz

Intel Xeon E5-2620 v3
6x 2.40 GHz (3.20 GHz) HT

AMD Epyc 7251
2.10 GHz

Intel Core i5-8400
6x 2.80 GHz (3. 80 GHz)

Intel Xeon E5-1660 v2
6x 3.70 GHz (4.00 GHz) HT

Cinebench R11.5, 64bit (Single-Core) — AMD Epyc 7251

Cinebench R11.5 is an outdated version of the benchmark for processors of earlier generations. To find out the potential or compare it with a modern processor model, it is enough to check the performance estimate. The higher it is, the better it is. Hyperthreading is not included.

Intel Core i5-4570
4x 3.20 GHz (3.60 GHz)

Intel Pentium G4600T
2x 3. 00 GHz (No turbo) HT

AMD Epyc 7251
2.10 GHz

Intel Xeon E3-1235L v5
2.00 GHz

Intel Xeon E3-1235L v5
4x 2.00 GHz (3.00 GHz)

Cinebench R11.5, 64bit (Multi-Core) — AMD Epyc 7251

Cinebench R11.5 benchmark is designed for testing early-generation processors. The overall final performance is based on 3D scene simulations in Cinema 4 Suite. It engages all processor cores.

Intel Core i7-5820K
3.30 GHz

Intel Core i7-5820K
6x 3.30 GHz (3.60 GHz) HT

AMD Epyc 7251
2.10 GHz

Intel Core i7-7700K
4x 4.20 GHz (4.50 GHz) HT

Intel Core i7-4930K
3. 40 GHz

Estimated results for PassMark CPU Mark — AMD Epyc 7251

The authoritative benchmark PassMark shows how efficient the processor is in the overall performance rating. It takes into account the operation mode of all cores and supports hyperthreading. The benchmark is based on various scenarios for performing calculations, 2D and 3D modelling.

Intel Core i7-7740X
4x 4.30 GHz (4.50 GHz) HT

Intel Core i5-8600
6x 3.10 GHz (4.20 GHz)

AMD Epyc 7251
2. 10 GHz

Intel Core i5-8400
6x 2.80 GHz (3.80 GHz)

Intel Core i5-9600T
6x 2.30 GHz (3.90 GHz)

0.0
Out of 0
CMPTEK score

 

AMD Epyc 7251 vs AMD Epyc 7351: What is the difference?

57points

AMD Epyc 7251

59points

AMD Epyc 7351

vs

61 facts in comparison

AMD Epyc 7251

AMD Epyc 7351

Why is AMD Epyc 7251 better than AMD Epyc 7351?

  • 35W lower TDP?
    120Wvs155W
  • Supports 64-bit?
  • Supports ECC memory?

Why is AMD Epyc 7351 better than AMD Epyc 7251?

  • 16 more CPU threads?
    32vs16
  • 2. 29x faster CPU speed?
    16 x 2.4GHzvs8 x 2.1GHz
  • 32MB bigger L3 cache?
    64MBvs32MB
  • 768KB bigger L1 cache?
    1536KBvs768KB
  • 4MB bigger L2 cache?
    8MBvs4MB
  • 266MHz higher ram speed?
    2666MHzvs2400MHz
  • 1.97x higher PassMark result?
    21261vs10771
  • 13.46% higher PassMark result (single)?
    1728vs1523

Which are the most popular comparisons?

AMD Epyc 7251

vs

Intel Xeon Silver 4110

AMD Epyc 7351

vs

AMD Epyc Embedded 3101

AMD Epyc 7251

vs

AMD Epyc 7262

AMD Epyc 7351

vs

AMD Epyc 7301

AMD Epyc 7251

vs

AMD Epyc 7302

AMD Epyc 7351

vs

AMD Epyc 7351P

AMD Epyc 7251

vs

AMD Epyc 7401P

AMD Epyc 7351

vs

Intel Xeon E5-2640 v4

AMD Epyc 7251

vs

AMD Epyc 7773X

AMD Epyc 7351

vs

Intel Xeon Silver 4110

AMD Epyc 7251

vs

AMD Epyc Embedded 3251

Price comparison

User reviews

Performance

1. CPU speed

8 x 2.1GHz

16 x 2.4GHz

The CPU speed indicates how many processing cycles per second can be executed by a CPU, considering all of its cores (processing units). It is calculated by adding the clock rates of each core or, in the case of multi-core processors employing different microarchitectures, of each group of cores.

2.CPU threads

More threads result in faster performance and better multitasking.

3.turbo clock speed

2.9GHz

2.9GHz

When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.

4.L3 cache

A larger L3 cache results in faster CPU and system-wide performance.

5.L1 cache

1536KB

A larger L1 cache results in faster CPU and system-wide performance.

6.L2 cache

A larger L2 cache results in faster CPU and system-wide performance.

7.L2 core

0.5MB/core

0.5MB/core

More data can be stored in the L2 cache for access by each core of the CPU.

8.clock multiplier

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

The clock multiplier controls the speed of the CPU.

9.Has an unlocked multiplier

✖AMD Epyc 7251

✖AMD Epyc 7351

Some processors come with an unlocked multiplier which makes them easy to overclock, allowing you to gain increased performance in games and other apps.

Memory

1.Supports ECC memory

✔AMD Epyc 7251

✖AMD Epyc 7351

Error-correcting code memory can detect and correct data corruption. It is used when is it essential to avoid corruption, such as scientific computing or when running a server.

2.maximum memory bandwidth

307GB/s

307GB/s

This is the maximum rate that data can be read from or stored into memory.

3.DDR memory version

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

DDR (Double Data Rate) memory is the most common type of RAM. Newer versions of DDR memory support higher maximum speeds and are more energy-efficient.

4.maximum memory amount

2000GB

2000GB

The maximum amount of memory (RAM) supported.

5.RAM speed

2400MHz

2666MHz

It can support faster memory, which will give quicker system performance.

6.memory channels

More memory channels increases the speed of data transfer between the memory and the CPU.

7.bus speed

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

The bus is responsible for transferring data between different components of a computer or device.

8.bus transfer rate

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

The bus is responsible for transferring data between different components of a computer or device.

9.eMMC version

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

A higher version of eMMC allows faster memory interfaces, having a positive effect on the performance of a device. For example, when transferring files from your computer to the internal storage over USB.

Features

1.uses multithreading

✖AMD Epyc 7251

✖AMD Epyc 7351

Multithreading technology (such as Intel’s Hyperthreading or AMD’s Simultaneous Multithreading) provides increased performance by splitting each of the processor’s physical cores into virtual cores, also known as threads. This way, each core can run two instruction streams at once.

2.SSE version

SSE is used to speed up multimedia tasks such as editing an image or adjusting audio volume. Each new version contains new instructions and improvements.

3.Has AES

✔AMD Epyc 7251

✔AMD Epyc 7351

AES is used to speed up encryption and decryption.

4.Has AVX

✔AMD Epyc 7251

✔AMD Epyc 7351

AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.

5.bits executed at a time

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

NEON provides acceleration for media processing, such as listening to MP3s.

6.front-end width

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

The CPU can decode more instructions per clock (IPC), meaning that the CPU performs better

7.Has F16C

✔AMD Epyc 7251

✔AMD Epyc 7351

F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

8.Has FMA3

✔AMD Epyc 7251

✔AMD Epyc 7351

FMA3 is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

9.Has FMA4

✖AMD Epyc 7251

✖AMD Epyc 7351

FMA4 is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.

Benchmarks

1.Cinebench R20 (multi) result

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Cinebench R20 is a benchmark tool that measures a CPU’s multi-core performance by rendering a 3D scene.

2.Cinebench R20 (single) result

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Cinebench R20 is a benchmark tool that measures a CPU’s single-core performance by rendering a 3D scene.

3.Geekbench 5 result (multi)

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

Geekbench 5 is a cross-platform benchmark that measures a processor’s multi-core performance. (Source: Primate Labs, 2022)

4.Geekbench 5 result (single)

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

Geekbench 5 is a cross-platform benchmark that measures a processor’s single-core performance. (Source: Primate Labs, 2022)

5.PassMark result

This benchmark measures the performance of the CPU using multiple threads.

6.PassMark result (single)

This benchmark measures the performance of the CPU using a single thread.

7.performance per watt

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

This means the CPU is more efficient, giving a greater amount of performance for each watt of power used.

8.Blender (bmw27) result

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

The Blender (bmw27) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.

9.Blender (classroom) result

Unknown. Help us by suggesting a value. (AMD Epyc 7251)

Unknown. Help us by suggesting a value. (AMD Epyc 7351)

The Blender (classroom) benchmark measures the performance of a processor by rendering a 3D scene. More powerful processors can render the scene in less time.

Price comparison

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Which are the best Enterprise CPUs?

AMD EPYC Processors Officially Introduced

After AMD’s Zen architecture debuted in the consumer segment with Ryzen family models, it was time for server processors to come out. AMD did just that late last night: they officially unveiled the 14nm EPYC 7000 series processors, named the first models, and shared information about the cost of new products that replaced the Opteron processors. The first wave included 12 processor models with different performance levels and up to 32 physical cores. Of the 12 models, by the way, 4 models with 32 cores and 64 threads. AMD is confident that the new products will also be able to partially withstand the Skylake generation of Intel Xeon processors, and not just Broadwell.


The flagship model EPYC 7601 with 32 cores and a base frequency of 2.2 GHz (in turbo mode — 3.2 GHz) has a TDP of 180W. Also in the family there are 32-core models with a slightly lower frequency, but with reduced consumption. Stepping down in terms of core count are two 24-core models with the flagship EPYC 7451 (2.3/3.2 GHz) with the same TDP of 180W, and three 16-core models with the flagship EPYC 7351 (2.4/2.9 GHz). The consumption of the 16-core model is at the level of 170 watts. One single 8-core EPYC 7251 consumes up to 120W at 2.1/2.9 frequenciesGHz.


According to AMD, EPYC processors under «normal» load will be able to show operating frequencies close to the maximum. Thus, the 32-core EPYC 7601 with a base frequency of 2.2 GHz can raise the frequency for all cores up to 2.7 GHz and up to 3.2 GHz for 12 or less cores simultaneously. The EPYC 7401 model with 24 cores for 8 cores or less supports 3 GHz operation, overclocking all cores at once to 2.8 GHz (base frequency 2 GHz).


The TDP level of EPYC, by the way, is greatly affected by the values ​​of memory clock frequencies. For example, the EPYC 7501 has a TDP of 170W with DDR4-2666 memory and a TDP of 155W with DDR4-2400 memory. This allows new AMD server platforms to be configured based on customer requirements.

Of the 12 new products, 3 processors have been prepared by AMD to work in single-processor configurations, while the rest are suitable for dual-processor configurations. By the way, the server market mainly consumes two-processor server systems. AMD EPYC models for single processor systems are marked with a «P» suffix: EPYC 7551P, EPYC 7401P, and EPYC 7351P with 32, 24, and 16 cores, respectively. The EPYC P processors operate at slightly higher clock speeds than the dual-processor models, although they do not differ in general specifications from them. In addition, each processor socket in the system can have up to 2 TB of RAM.


EPYC processors are built like Ryzen processors, so that in the maximum 32-core configuration, the EPYC processor consists of four separate 8-core Zeppelin crystals interconnected by an Infinity Fabric bus. For the 24-core version, six cores are deactivated. In this case, one of the four crystals cannot be completely turned off, since then problems will arise in the operation of the Infinity Fabric bus. This means that even an 8-core processor will contain all four dies, although only two cores will be activated in each of them. It looks not just expensive, but insanely expensive, but AMD considers this practice justified.


The Infinity Fabric bus connects each core to each. It is bidirectional, and each channel provides an exchange rate of up to 42 GB / s. To reduce consumption, the exchange rate can be reduced, which gives more room to increase the TDP of the cores. Between themselves, two processors in the system are connected by four Infinity Fabric buses with a bandwidth of up to 38 GB / s each.


All models of EPYC processors, as AMD likes to repeat, have the same basic features, including a full set of 128 PCI Express lanes. Also, all of them support 8 memory channels per processor up to DDR4-2666 and contain all the other interfaces necessary for the platform to work (USB, SATA, and others). Processor Socket Solutions — 4094-pin LGA (SP3) which is not compatible with TR4 for Ryzen Threadripper.


According to AMD internal tests, EPYC models are significantly faster than Broadwell EP generation Intel Xeon models. So, the 32-core model EPYC 7601 when working in the SPEC test with integer values ​​is up to 47% faster than the 22-core Intel Broadwell at 2.4/3.6 GHz and up to 75% faster when working with floating point numbers. Other models also outperform similarly priced competitors from the opposite camp. And individual solutions are completely ready to bypass even the dual-processor configurations of the «blue» ones. Thus, the 32-core model EPYC 7551P is 21% ahead of the platform of two 12-core Intel Xeon E5-2650-v4 processors, being also more profitable in terms of power consumption.


As for the prices for new products, they are definitely more interesting than Intel’s offers. During the introduction of EPYC processors, AMD announced that the 32-core flagship (EPYC 7601) will cost $4200 in wholesale lots. For comparison, the competing product in the face of the Intel Xeon E5-2699A v4 model costs $4938. But the EPYC 7601 is still 47% faster than the competitor. The company also disclosed the price of the EPYC 7301 ($825), which is 70% faster than the $939 Intel Xeon E5-2640 v4, and the price of the EPYC 7551P ($2100), which is 21% faster than the $2386 Xeon E5-2650 v4.


recommendations

AMD EPYC processor systems are expected to ship in late July. This will be done by a number of major vendors and OEMs, including ASUS, Dell, Gigabyte, HP, Lenovo, Supermicro and Tyan.

EPYC 7251 processor [in 1 benchmark]

AMD
EPYC 7251

  • Interface
  • Core frequency
  • Video memory size
  • Memory type
  • Memory frequency
  • Maximum resolution

Description

AMD started AMD EPYC 7251 sales on June 20, 2017 at a suggested price of $574. This is a desktop processor based on the Naples architecture, primarily designed for office systems. It has 8 cores and 16 threads and is manufactured in 14 nm process technology, the maximum frequency is 2100 MHz — 2900 MHz (1 core)2900 MHz (2 cores)2900 MHz (3 cores)2900 MHz (4 cores) 2900 MHz (5 cores) 2900 MHz (6 cores) 2900 MHz (7 cores) 2900 MHz (8 cores), multiplier unlocked.

Compatibility is a socket processor
AMD Socket TR4
with TDP 120W. It supports memory
DDR4
Eight-channel .

It provides poor benchmark performance at

14.81%

from the leader, which is AMD EPYC 7h22.


EPYC
7251

or


EPYC
7h22

General information

Information about the type (desktop or laptop) and architecture of the EPYC 7251, as well as when sales started and cost at that time.

Performance ranking 474

  • 0
  • 50
  • 100

Features

EPYC 7251 quantitative parameters such as number of cores and threads, clock speeds, manufacturing process, cache size and multiplier lock status. They indirectly speak about the performance of the processor, but for an accurate assessment, you need to consider the results of the tests.

Cores 128

Benchmark tests

These are the results of the EPYC 7251 performance tests in non-gaming benchmarks. The overall score is set from 0 to 100, where 100 corresponds to the fastest processor at the moment.


Overall performance in tests

This is our overall performance rating. We regularly improve our algorithms, but if you find any inconsistencies, feel free to speak up in the comments section, we usually fix problems quickly.

EPYC 7251
14.81

  • Passmark
Passmark

Passmark CPU Mark is a widely used benchmark that consists of 8 different tests, including integer and floating point calculations, extended instruction tests, compression, encryption, and game physics calculations. Also includes a separate single-threaded test.

Benchmark coverage: 68%

EPYC 7251
14935


Relative capacity

Overall performance of the EPYC 7251 compared to its closest competitor in server processors.


Intel Xeon Silver 4215R
100.81

Intel Xeon E5-2683v3
100.81

Intel Xeon Silver 4116
100

AMD EPYC 7251
100

Intel Xeon E5-2699A v4
99.93

Intel Xeon E5-2666 V3
99. 8

Intel Xeon E5-2658A V3
99.66

Other processors

Here we recommend several processors that are more or less similar in performance to the reviewed one.


EPYC
7232P

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Xeon E5
2689v4

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EPYC
7252

Compare


EPYC
7451

Compare


EPYC
7281

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Recommended graphics cards

According to our statistics, these graphics cards are most often used with EPYC 7251:


GeForce RTX
3090 Ti

100%

User rating

Here you can see the evaluation of the processor by users, as well as put your own rating.


Tips and comments

Here you can ask a question about the EPYC 7251 processor, agree or disagree with our judgements, or report errors or inaccuracies on the site.


Please enable JavaScript to view the comments powered by Disqus.

AMD Epyc 7002

Server Processor Lineup Overview

Introduction

A month has passed since the announcement of the second generation AMD Epyc processors. And now is the time to calmly and without too much haste to understand all the innovations and market prospects of these CPUs. A little earlier, AMD launched successful Ryzen desktop processors based on the improved Zen 2 microarchitecture, which performed very well in tests, gaining industry attention, but if the company wants to make really big money on processors, then you have to pay attention to the server market.

The last time AMD conquered the server processor market with 64-bit Opteron processors was way back in 2004. Since then, AMD’s share in this market has slipped to almost zero, but already the first generation of Epyc processors based on the Zen 1 microarchitecture allowed them to gain a certain number of customers, although Intel was still very far away from the same. The announcement of the first generation of Epyc processors in July 2017 started a new page for the company in this market. Already the first solutions of the line offered a larger number of cores, increased memory bandwidth and more options for connecting peripherals, compared to the then competitors from Intel.

But many industrial players were waiting for something even more competitive, and finally they waited — the second generation of Epyc solved many of the problems of the first one, switched to the most advanced technical process, thanks to an ingenious layout, providing the maximum number of cores (for x86-compatible solutions), and also offered excellent opportunities to support RAM and external devices connected via the PCI Express bus. The second generation of Epyc, codenamed «Rome» and just released, offers even more performance along with some new features.

Today’s tasks require high-performance computing devices for a large number of applications, including: cloud services, virtualization, machine and deep learning, big data analysis, etc. To solve these issues, modern servers must not only be as productive as possible, but and scale widely, have not only low hardware cost, but also the lowest possible total cost of ownership. Security issues are also very important — for servers serving organizations and a large number of users, this is especially important.

It’s no surprise that compute vendors are aggressively bringing more and more CPU and GPU-based products to the server market, and those with advanced technical capabilities and new integration approaches will have a definite advantage here. The developed ecosystem supported by these companies is also very important. The release of the first Epyc solutions opened a new page for AMD, as these server processors offered higher performance at a lower price, not to mention a different level of total cost of ownership, compared to competitors.

New server processors were well received by the industry for all its conservatism and inertia, a large number of hardware solutions using Epyc were released, they were supported by software, including the most popular cloud platforms: Microsoft Azure, Amazon Web Services, Tencent Cloud, Baidu, Oracle Cloud and others. But server solutions are not the most rapidly changing industry, and in order to further strengthen the promotion of Epyc to the masses, it was necessary to further improve the capabilities of these processors. What AMD has been doing for the past two years, working on the second generation of the Epyc server processor family.

It’s already clear that 2nd generation AMD Epyc server processors have changed the market even more than the first generation and set new standards for today’s data center solutions in terms of performance and cost of operation. The new AMD server processors deliver superior performance across a wide range of workloads with up to 64 cores per processor. The Epyc 7002 delivers up to 2x the performance of the company’s previous generation of server processors and a 25%-50% lower total cost of ownership than competing products.

Most impressive was the increase in the number of cores and multi-threaded performance — the new products are more than twice as fast as the first generation of Epyc, which is also important because they can be used with single-socket servers where two processors used to be. And all this splendor — in the same socket and with a slight increase in power consumption and heat dissipation. New CPUs can be installed on first generation platforms, although to support some of the functionality, you will need to update the BIOS of the motherboard designed to install the Epyc 7001. But since such an upgrade is not very common for server processors, second generation platforms will most often be purchased, revealing all the possibilities Epyc 7002, such as support for PCIe 4.0 with twice the bandwidth, useful for high-speed Ethernet adapters and SSD drives, for example. Let’s talk about everything in more detail.

Process and microarchitectural improvements

We can immediately say that the new Epyc 7002 processors are the first in many respects. Including, these are the first 64-core x86-compatible processors, the first x86-compatible processors created using the 7nm process technology, the first processors with PCI Express 4.0 bus support, the first processors with DDR4-3200 memory support, etc. etc.

At one time, AMD made a serious bet on maximum innovation: a mandatory transition to a 7 nm process technology, numerous architectural improvements that eliminate major shortcomings, and the use of completely new layout solutions. All these points worked perfectly, only the most modern technical process made it possible to obtain twice the density of transistors and half the energy consumption at the same performance, and at the same time an increase in frequency by about a quarter.

Investments in the development of 7nm solutions for AMD have more than justified themselves, which is especially noticeable against the backdrop of the problems of the main competitor with the development of a technical process that is approximately the same in terms of capabilities. Even though TSMC and Intel have very different nanometers, and the picture above slightly exaggerates the superiority of 7nm over 10nm, in the past the advantage has always been with Intel, which has its own production, but now, through its own investments and collaboration with by the Taiwanese company TSMC, and also taking into account the problems of a competitor with their semiconductor production, AMD not only caught up with the rival, but also took the lead — this has never happened before!

Why is the process used so important? Yes, if only because it allows you to provide a lower cost, and with it a reduction in the price of products. According to industry analysts, today’s Epyc 7nm multi-chip processors achieve about 90% die yield, while Intel is content with less than half the yield. Taking into account the difference in technical processes (14 nm for Intel and 7 nm for AMD at TSMC), each processor of the former costs one and a half times more even though the latter has to pay third-party manufacturers: TSMC and GlobalFoundries. These approximate estimates clearly show that AMD’s bet was justified.

However, the matter was not limited to the new production technology, AMD decided to fix one of the obvious problems of the first generation of the Zen architecture — the relatively low number of executable instructions per clock (IPC). In many respects, it was precisely due to this that the competitor had an advantage over AMD solutions in some tasks from different fields of application. And in Zen 2, engineers were able to achieve an increase in computing speed at the same frequency by 15%, and if we talk about an increase in multi-threaded calculations, then in typical server tasks the new Epyc is faster than the old one, all other things being equal, already by 23%, and this is without taking into account double the number of processing cores and higher operating frequency!

How was this achieved, what exactly was improved in the second version of Zen? We have already considered the main issues in the article on the release of Ryzen desktop processors, and the individual cores in Epyc are no different from them. In Zen 2, they made a lot of microarchitectural improvements compared to Zen 1.

In short, to increase performance in the new microarchitecture, we improved branch prediction (a new TAGE branch predictor appeared), slightly increased integer performance, increased buffers and improved schedulers, optimized work L1 cache, almost doubling its bandwidth, doubling the capacity of the L3 cache, etc. In addition, some new instructions have been added to Zen 2.

But still, the most important change in Zen 2 is the increase in the width of the floating point unit from 128 to 256 bits. With this improvement, all Zen 2 processors execute 256-bit AVX2 instructions twice as fast as the first generation. That is, Zen 2 introduced support for the execution of two AVX-256 instructions per clock, which allowed AMD to claim a twofold increase in FP performance. Moreover, unlike Intel solutions, the second generation of Epyc does not reduce frequencies when executing AVX2 too much, but simply operates within the power consumption limits set by the platform.

We also note the doubling of cache memory for decoded micro-ops, which can reduce downtime of the execution units of the pipeline, as well as improved branch prediction using the new TAGE predictor, and an increased size of the first and second level branch buffers. These changes are intended to reduce the occurrence of prediction errors and increase the efficiency of code branch prediction, improving overall performance.

The third address generation unit (AGU) has appeared in the new computing cores, which improves access to data for execution units. The cache bus width has been doubled and the L3 cache has been doubled to 32 MB per chiplet. This helps speed up data access by execution devices. Scheduler queue sizes and register file size have been increased to improve the efficiency of multithreaded code execution.

The second generation of Epyc has an additional advantage in optimizing energy efficiency in the form of improved power management, which allows you to get the highest possible turbo frequency with a different number of active computing cores. That is, as in desktop Ryzen, even factory frequencies squeeze almost all possible performance out of the CPU. If we talk about specific numbers, then with eight active cores, the clock frequency of the top Epyc 7742 model is 3.4 GHz, with 16 it drops to 3.33 GHz, and smoothly decreases to 3.2 GHz for all 64 cores.

Note that the average single-threaded performance of the Epyc 7002 in a wide range of tasks has increased even slightly more than 15%, which AMD announced, judging by the tests of our numerous colleagues. And it is very likely that with such characteristics and capabilities, AMD solutions will successfully compete not only in the desktop PC market, but also in the high-performance computing market, where Intel Xeon has so far reigned.

Chiplet layout

But still, the most important thing that beats the competitor is the new AMD server processor — an innovative layout solution using so-called chiplets — separate crystals connected by a fast bus. Already in the first generation of Epyc, not a single crystal was used, but four separate ones, including computing cores, memory controllers and I / O systems, and all of them were united by a fast bus. This approach made it possible to bypass the restrictions on the size of a single chip and reduce the production cost of multi-core CPUs, because the yield of suitable chips is higher for small chips. At the same time, scalability increased, since the number of individual crystals containing several cores could be varied over a wider range.

But in the second generation of Epyc, the company’s engineers went even further, using the second generation of AMD’s Infinity architecture, optimized for multi-core computing. In the first generation of Epyc, one of the controversial points was the increased complexity of the solution: 32-core processors contained four dies with 8 cores, each of which had two memory channels, and in a two-processor configuration, things were even worse, because it led to access difficulties to memory from cores in different processors. Due to these problems, a large number of applications showed insufficient performance even with a relatively large number of CPU cores.

In the second generation of Epyc, the problem was solved with the help of a central I/O chiplet, which contains all the controllers necessary for operation. The full version of the chip consists of eight Core Complex Die (CCD) chiplets and one I/O Die (IOD) core. All CCDs are connected to the central hub using high-speed Infinity Fabric (IF) links, and with their help they receive data from memory and external PCIe devices, as well as from neighboring computing cores.

Each of the CCD chipsets contains a pair of quad-core Core CompleX (CCX) units, which also include 16 MB of L3 cache. It turns out that the top 64-core Epyc consists of 8 CCD chiplets and 16 CCX units that communicate with each other using a central IOD chiplet.

At the same time, different chiplets use the optimal manufacturing process for their production: CPU chipsets are manufactured at TSMC factories using a 7 nm manufacturing process, and I / O chiplets are manufactured at GlobalFoundries using 14 nm technology. The die with compute cores and cache memory uses the most advanced process technology to reduce the size of the die, maximize performance with minimal power consumption, while the chiplet with memory controllers and PCIe does not need such drastic measures and is completely dispensed with by a run-in and proven process technology. AMD calls this packaging a hybrid multi-core system-on-a-chip (SoC).

This is useful, among other things, because I / O circuits are more difficult to produce on thinner technical processes, and their transfer to a long-standing and well-established production technology simplifies and reduces the cost of production, speeding up the introduction of solutions to the market. As a result of this approach, AMD has gained a significant advantage by producing relatively small 7nm CCDs with good yields.

This approach improves data transfer latency by providing a flexible and unified memory access architecture. Compared to the first generation, scaling by the number of processing cores has become even more flexible, the need for I/O subsystems and memory controllers in each of the chips has gone, and most importantly, a single central I/O chiplet has improved non-uniform memory access (NUMA) performance with inter-chip interaction.

The number of remote NUMA memory nodes has been reduced in the second generation of Epyc server processors. If in the first generation each core had three possible access times to memory physically attached to different processor chips (to the memory controllers of the chip in question, controllers in neighboring chips, and controllers in the second chip), then in the second generation of Epyc there are only two options: memory controllers in the current I/O chiplet and in the adjacent one.

Accordingly, the access time in the first generation of Epyc can be 90, 141 or 234 ns, and in the second — either 104 or 201 ns. And on average, memory access latencies with the dual-chip design were reduced by 14%-19%. This improvement is very important, since the performance in most modern tasks is very dependent on the operation of the memory subsystem, including the efficiency of data caching.

Chipset arrangement worked perfectly, this step was actually mandatory for further increase in the number of cores, and another scheme would be much less profitable. Of course, a monolithic crystal would provide much lower delays in both memory access and between computing cores, but then it would hardly be possible to increase the number of cores to 64 pieces — for an example, you can look at competitor solutions.

There is one problem with AMD’s scheme. If you want to access data in a cache that does not belong to the same CCX, but is on the same CCD die, then it will be as slow (relatively) as accessing cache data from a different chip altogether. In this case, the data will always pass through the IF bus to the I / O chiplet and back — already to the desired core.

This is not so scary in reality, since each core in the CCX has 4 MB of L3 cache, which is much more than competing Intel processors, and the data prefetchers are much larger in order to load all the necessary data. Although some tasks, such as database applications, may suffer, and the relatively slow communication with the central chiplet reduces the speed of synchronization. And in some tests, the 28-core Intel Xeon 8280 turned out to be faster than the 32-core Epyc 7601 from the previous generation.

There may be other similar tasks, but in most cases 16 MB of L3 cache for every four cores in the CCX should be enough. The larger L3 cache in the Epyc 7742 results in significantly lower access latency at data sizes between 4 and 16 MB compared to the same Epyc from the previous generation, and the new Epyc’s L3 cache is very fast compared to the competitor’s Intel Xeon Platinum solutions 8280, which is also confirmed by synthetic tests.

The Infinity Fabric bus itself in the second generation Epyc has been accelerated, its width has doubled from 256 to 512 bits. And the delays in sending data between the cores have really improved noticeably. Different processor cores communicate 25%-33% faster, and the exchange rate between cores within the same CCX block is even better than that of a competitor with a ring bus. The acceleration of Infinity Fabric is manifested not only when transferring data between cores. Each CCX block has its own 16 MB L3 cache, and calls through Infinity Fabric occur when the cores of one CCX block need data located in the L3 cache of the neighboring block, not to mention other chiplets. So the acceleration of Infinity Fabric had a positive impact on performance in a wide range of tasks with active data access.

The cache memory subsystem itself in the new processors has changed little, the cache memory of the first and second levels has retained its volume and organization, but the third level cache has been doubled (16 MB for every four cores) due to the transition to the 7 nm process technology, which allowed to increase the transistor budget for chiplets. The increase in the volume of the L3 cache was, among other things, the reason that in new processors (both Epyc and Ryzen) memory controllers are now located not next to the computational cores, but in a separate I / O chiplet. Caching a large amount of data is necessary in order to reduce delays when the computing cores are idle waiting for data to be received from memory.

Growth in cache memory is traditionally accompanied by some increase in its latency, but the increase in L3 cache latency in the case of the transition from Zen 1 to Zen 2 turned out to be rather small. And the latency of the L1- and L2-cache remained at the same level due to the lack of special changes. But the L1 cache has become faster, as it is now able to serve two 256-bit reads and one 256-bit write per cycle, which is twice as much as the first generation Epyc. And if the speed of the L1- and L2-cache in the new processors of the Zen 2 architecture is comparable to the cache memory parameters of the competitor’s processors, then the L3-cache provides even lower latency compared to the cache of Intel processors. However, not everything is so simple, and L3 cache operation algorithms in processors from different manufacturers differ, as well as their practical efficiency.

But the performance of memory access delays in all Zen 2 give some cause for concern — according to these parameters, the new products are even slightly worse than their predecessors, losing in terms of memory latency to the competitor’s processors. It’s all about the very chiplet layout that separated the computing cores and memory controllers. Chiplets with computing cores and L3 cache are separated from the memory controller, PCI Express bus controller and other elements placed in the I/O chiplet. Another link has appeared between the memory and all processor cores in the form of the Infinity Fabric bus. And although AMD claims that it is similar in characteristics to the bus connecting a pair of CCX blocks inside the chiplet, this hardly does not affect the delays that occur when accessing data.

But how much worse is memory handling in the new AMD server processors? The increase in latency in all Zen 2 processors compared to the processors of the previous generation reaches 10%, and the actual throughput when writing to memory has decreased slightly. The separation of the memory controller from the computing cores could not lead to a different result, because it was to speed up access to it that 15 years ago the memory controller was transferred from the chipset to the CPU. As a result, the read bandwidth of the new Epyc is really quite high, but in terms of write speed they are inferior to competitors from Intel. This is all the more unpleasant, since the first Epycs were already inferior to competitor solutions in terms of memory performance, and now the situation in some tasks may even worsen.

Still, the new organization of memory access is the right decision. After all, the main advantage of the second generation of Epyc over the first is that it is much easier to optimize software for it. Each processor (in a dual-processor configuration) has only one possible memory latency value, since each core has the same path to all memory channels. And in the first generation of Epyc, there were two NUMA areas per CPU, since the memory in them is attached to different chips. So in a dual-processor system, the Epyc 7002 will run in the traditional NUMA configuration that programmers have known for years. While the Epyc 7001’s memory access is faster in some cases, the first generation topology is unnecessarily complex, and in many other cases memory latencies increase, which is difficult to predict and optimize in software. The memory configuration of the Epyc 7002 looks much simpler from a software point of view, which will reduce the time required for its optimization.

The main objectives in the development of the Zen 2 microarchitecture were to increase the throughput of on-chip connections, improve the ability to connect external devices (a large number of PCIe 4.0 channels), as well as improved scaling (the ability to release products with a different number of computing cores and memory channels). Epyc 7002 processors are compatible with existing platforms at 10.7 GT/s inter-socket connection, but on the second generation of platforms this speed will increase to 18 GT/s, and there can be up to four such connections between processor sockets, resulting in throughput capacity up to 202 GB/s.

In general, AMD doesn’t tell much about the internal content of the I/O chiplet. It is identical across all Epyc models, supporting 128 PCIe 4.0 lanes and 8 channels of DDR4-3200 error-correcting memory. Modules up to 256 GB are supported and it is recommended to evenly fill all channels with the same size and type of modules, although in theory even one memory module can be used for the entire system, although this makes no sense. The average memory access latency for eight channels within a single CPU is just over 100 ns, and specific access times depend on the memory frequency and module type. When using two modules per channel, the maximum speed is reduced from 3200 to 2933 or even up to 2666 MHz when dialing with large volume modules.

But with all its limitations and caveats, the improved AMD Infinity architecture provided quite high performance in terms of peak bandwidth and memory, as well as the characteristics of the I / O subsystem. Thus, the second generation of Epyc supports up to 4 TB of DDR4-3200 memory with 8 channels per slot, with a peak memory bandwidth of up to 204 GB / s per processor. That is, the maximum memory bandwidth for a two-processor server for the Epyc 7002 is 410 GB/s, while for the Epyc 7001 it was 340 GB/s, and for competing processors from Intel (Xeon Cascade Lake SP) it was only 282 GB/s.

Other technologies and innovations

Not much has changed with PCI Express bus support other than the supported version. For I/O, the new processors have 128 PCIe 4.0 lanes per slot, with a maximum throughput of 512 GB/s. The Epyc 7002 models are the first x86-compatible processors to support this, with all eight x16 channels per CPU supporting double the data rate. 16-lane PCIe 4.0 connections can be split into multiple devices requiring less bandwidth.

But although there are 128 PCIe 4.0 lines for each CPU, for a two-socket system this number will not increase, since the Infinity Fabric connecting them takes 64 lines from each of the CPUs (it is possible to get 192 lines by taking part from the bus connecting processors — with corresponding consequences). Processor lanes are divided into eight groups of 16, and each of them supports up to x1 split, but with a total number of slots per group no more than eight. Half of the groups support switching eight PCIe lanes to SATA3 mode, and in total, up to 32 SATA or NVMe drives are supported.

The introduction of the PCIe 4.0 bus should not be underestimated as it delivers double the bandwidth that is essential for NVMe storage and high-speed Infiniband connections. According to AMD, it provides up to linear scaling for data read and write performance using these technologies, and for servers this is very important. 128 lanes of PCIe 4.0 with double the bandwidth can be used to increase network data transfer speed when connecting server clusters to each other, and for other tasks it may be useful to increase the bandwidth to communicate with GPU and TPU accelerators designed to accelerate the service of neural networks . The same applies to fast NVMe drives — with new processors, you can get a fairly high density of such devices.

In the server market, security is very important for all customers, and here AMD has a clear advantage over its competitor, including when it comes to the sensational threats of Specter, Meltdown, Foreshadow and others. If the first generation of Epyc required a firmware update and protection support from the OS, then the second generation already has, among other things, hardware protection elements from all Specter versions.

An important update concerns the expansion of the AES-128 encryption of RAM, which practically does not affect performance. The Epyc 7002 supports the second generation of Secure Encrypted Virtualization 2 (SEV2) and Secure Memory Encryption (SME) technology. To do this, a dedicated 32-bit AMD Secure Processor microcontroller in the form of ARM Cortex-A5 is embedded in Epyc chips, which is controlled by its own firmware and OS and provides cryptographic functionality.

This dedicated ARM kernel manages cryptographic keys and is invisible to x86 kernels. With SME working to protect against unauthorized memory access attacks, all memory is encrypted with a single key transparently to user applications, and SEV2 technology allows you to choose an active cryptographic key for each virtual machine. This is used to protect virtual machines from each other by using a separate cryptographic key for the master hypervisor and a key for each virtual machine or groups of them, isolating the hypervisor from guest virtual machines.

Support for these technologies is already available in a large number of server operating systems, and Epyc 7002 differs from the first generation in a significantly larger number of guest virtual machines supported (and simultaneously used cryptographic keys, respectively) — SEV2 technology provides encryption for 509 unique virtual machines and is compatible with existing AMD-V virtualization technology. A feature of the implementation is transparency for hardware accessing memory — all encryption and decryption occurs on the fly.

Interestingly, the security capabilities of server processors have been affected by AMD’s active work on custom products, including gaming console solutions. The company applies the experience gained in the development of systems-on-a-chip for game consoles, including the creation of server processors. In particular, the second generation of Epyc became more secure thanks to the development of chips for the Microsoft Xbox One and Sony PlayStation 4 game consoles. These companies insisted that games run in an isolated software environment that would be protected from pirates using hardware encryption.

Epyc 2nd Generation Processor Lineup

It’s time to move on to specific models of new processors. The main thing that distinguishes them from each other is a different number of computing cores. Since each of the processor chiplets contains eight physical cores, and there can be up to eight CPU chipsets on a chip, there are up to 64 cores in total per processor. And in a system based on two sockets, they will get twice as many — up to 128 cores and up to 256 threads.

Such a chiplet arrangement allows the flexibility to change the number of cores on the CPU, because it is always possible to make a configuration with fewer chiplets and fewer active cores in each chiplet. AMD released several variants of Epyc at once based on 2, 4, 6 and 8 chiplets with 8 cores each. Other related parameters change similarly — the L3 cache size is 32 MB per chiplet, since each four cores own a 16 MB block, and even if some of these cores are disabled, the L3 cache remains full.

The naming system for AMD server processors has remained unchanged from the previous generation. The first digit 7 means the 7000 series, the next two show the relative position in terms of positioning and performance (but do not directly say this and do not scale depending on performance, for example), and the last one means generation: 1 or 2. There is also an additional suffix P, meaning that the CPU belongs to single-processor — such models do not work in dual-processor configurations.

So, in total, AMD introduced 19 new server CPUs, 13 of which are designed for dual-processor configurations. All these processors differ only in the number of processing cores, they have the same characteristics in terms of RAM support (up to 4 TB of DDR4-3200 memory), as well as 128 full-speed PCIe 4.0 lanes available for connecting external devices.

Cores / Threads Frequency, GHz L3 cache, MB TDP, W Price, $
Basic Turbo
Epyc 7742 64/128 2. 25 3.40 256 225 6950
Epyc 7702 64/128 2.00 3.35 256 200 6450
Epyc 7642 48/96 2.30 3.30 256 225 4775
Epyc 7552 48/96 2.20 3.30 192 200 4025
Epyc 7542 32/64 2.90 3.40 128 225 3400
Epyc 7502 32/64 2.50 3.35 128 180 2600
Epyc 7452 32/64 2.35 3.35 128 155 2025
Epyc 7402 24/48 2.80 3.35 128 180 1783
Epyc 7352 24/48 2. 30 3.20 128 155 1350
Epyc 7302 16/32 3.00 3.30 128 155 978
Epyc 7282 16/32 2.80 3.20 64 120 650
Epyc 7272 12/24 2.90 3.20 64 120 625
Epyc 7262 8/16 3.20 3.40 128 155 575
Epyc 7252 8/16 3.10 3.20 64 120 475

Although the top model Epyc 7742 is AMD’s most expensive solution of all time, in general, we can say that the prices are attractive — the company continues the trend of releasing products that are very advantageous in terms of price and performance. And one of the most successful processors we see is the Epyc 7502, which offers 32 cores operating at a frequency of 2. 50-3.35 GHz — for only $2600. Compared to the $4200 Epyc 7601 from the first generation, the new processor has the same number of cores, but it is better in everything else: it has higher frequency, faster cores, more cache, better memory support and PCIe bus. With all this, the novelty will cost much less.

The same can be seen in other segments, and sometimes the advantage is even more noticeable: the Epyc 7552 offers twice as many cores at a higher operating frequency than the Xeon Platinum 8260, and the Epyc 7452 costs less than the Xeon Gold 6242. Very important also and that, unlike its competitor, AMD hasn’t cut back on the capabilities of cheap processors. Even the cheapest 8-core Epyc 7252 supports up to 4 TB of memory and has the same 128 PCIe 4.0 lanes and all other technologies, so you can make inexpensive servers with a bunch of NVMe drives connected to them, for example.

As for single-processor modifications, which can be more profitable under certain conditions, AMD has proposed five such modifications — they fully correspond in capabilities to their dual-processor counterparts, but are cheaper and have a P suffix in the name:

Cores / Threads Frequency, GHz L3 cache, MB TDP, W Price, $
Basic Turbo
Epyc 7702P 64/128 2. 00 3.35 256 200 4425
Epyc 7502P 32/64 2.50 3.35 128 180 2300
Epyc 7402P 24/48 2.80 3.35 128 180 1250
Epyc 7302P 16/32 3.00 3.30 128 155 825
Epyc 7232P 8/16 3.10 3.20 32 120 450

The specs clearly show how much clock speed AMD has squeezed out of the 7nm process technology. So, all 16 cores of the Epyc 7302P operate at a frequency of 3 GHz, while for a similar Epyc 7351 it was limited to 2.4 GHz — with the same power consumption of 155 watts. Again, the Epyc 7502P appears to be one of the best value solutions, offering a clear advantage over current dual processor systems with strong single-thread performance at 3. 35GHz and a relatively high all-core clock of 2.5GHz.

At the same time, compared to similar dual-processor systems in terms of the total number of processing cores, this solution will cost less to use and has a lower power consumption of 200 W, and also supports a large amount of memory (even if in reality it will not be 4 TB, but 1-2 TB due to the use of more common 64-128 GB modules) and offers rich opportunities for interaction with external devices in the form of 128 PCIe 4.0 lanes.

By the way, with the compatibility between the first and second generation Epyc platforms, not everything is as simple as we would like. Although the new products do indeed use the same Socket P3 processor socket, in practice, putting a new CPU into an old platform does not make much sense, since the PCIe bus will work in 3.0 mode, and the memory speed will be limited to 2667 MHz, and when installing two modules per channel and even worse — 1866-2400 MHz. Half of the benefits will be lost.

There is also another important parameter in the form of the set power consumption value — TDP. The line contains processors with different basic levels of consumption (and heat dissipation), when not one value is indicated, but a range is given. And, depending on the needs, you can adjust the specific level of CPU consumption, getting more time at higher frequencies with a higher TDP, or vice versa — configure the processor for better energy efficiency.

I would like to note that in recent years there have been no such powerful breakthroughs in the server processor market. Epyc doesn’t just offer similar single-threaded performance, but with twice as many cores as the competition. Probably, AMD was aiming to compete with the next generation of Intel Xeon server processors, and not with the current one, which is why the result turned out to be so sad for the latter. According to the specifications, the new Epycs are quite impressive — even based on their «paper» characteristics, we can confidently say that they really lead in performance. AMD solutions have improved cores, produced using the best process technology, and even more of them.

Rarely have we seen such big steps forward on all fronts. But just a few years ago, during the decline of Opteron, Intel had server processors two to three times faster than AMD. The release of the first generation of Epyc returned the company to the server market, those solutions were really good in terms of price and performance, but were inferior in tasks that used floating point operations (AVX). And now, in the second generation, AMD has tried not only to correct the shortcomings of the first, but also to become a leader. How good are the novelties in real applications, is it not limited to theory?

Performance score

We know from our desktop Ryzen benchmarks that the Zen 2 microarchitecture performs very well in synthetic benchmarks. It provides a performance increase of two in some tasks (AVX2), although in rare cases the performance remains at the level of Zen 1. But on average, the efficiency of performing simple calculations that are well parallelized and do not actively access data in RAM for solutions of the Zen microarchitecture 2 is as efficient as the Intel Skylake microarchitecture.

Unsurprisingly, the new Epyc shows the most impressive results where floating point operations are used, that is, AVX2, FMA3 and FMA4. Their execution in Zen 2 was doubled, so the results in such tests almost doubled. The first Epycs had no problems with integer calculations either, but their performance in Zen 2 was also slightly tightened with improvements in data caching and instruction decoding. But where the performance of the memory subsystem plays a big role (we are talking about delays, not throughput), the results are not always unambiguous. But again, this applies mainly to synthetic tests.

If we talk about the performance of the new Epyc 7002 models, according to AMD itself, then first of all, it should be noted that historically there has been a certain temporal dynamics of an increase in overall performance according to SPECint tests, which looks rather smooth on the graph:

But this was exactly until the appearance of the second generation of Epyc processors — a sharp increase in the number of cores in new processors led to a sharp jump in maximum performance and almost a twofold advantage over the best competitor’s solution on the market — moreover, not in any one application, and at once in several different tests, including integer and floating point:

As you can see, the results are serious. Even if AMD slightly exaggerated somewhere, such gains are impressive. It is only natural that many of the company’s partners are interested in such capabilities of the second generation of their server CPUs, because the novelties will simultaneously reduce the cost of maintenance and increase performance in numerous tasks and applications.

Apparently, this is true. On average, AMD estimates the advantage over a competitor by about 1.8-2.0 times (there are tasks with 50% superiority, but there are also doubled performance) with a reduced total cost of ownership by 25%-50%. Not surprisingly, many of the company’s partners immediately expressed their support for the improved Epyc processors both in word and in deed.

During the long presentation of the second generation of Epyc processors, representatives of various companies took the stage. In particular, the CTO of HPE introduced the new ProLiant DL325, DL385 and Apollo 35 solutions based on Epyc 7002 and available for order now. Together with its partners, AMD has been able to break a large number of world performance records in a wide variety of computing areas and categories.

The stage director from Twitter clearly showed the advantage that Epyc 7002 provided them. This can be judged by bare numbers: the transition to a new generation of server CPUs from the current infrastructure (unnamed, but we understand that!) Allowed to increase the number of computing cores by 40% (from 1240 cores up to 1792 cores per rack) for the same footprint, power consumption and cooling. Moreover, the total cost of ownership is reduced by a quarter.

Let’s take a look at some more detailed data on the performance of systems with two sockets available on the market — according to SPEC CPU 2017 integer tests. Comparison of a system of a pair of AMD Epyc 7742 processors with a pair of Intel Xeon Platinum 8280L showed an almost twofold advantage of new products from AMD. Even the 32-core models of the Epyc 7002 line are slightly faster than the best of the competition:

The company claims that their new server solutions have broken more than 80 performance records, including four integer benchmarks and 11 floating point tests, six cloud applications, 18 big data analytics tasks, and so on. And if we take Java performance, then the advantage of the most powerful of AMD’s server innovations over its competitor is slightly less — about 70% -80%, which is also very impressive.

But what does this increased performance actually mean for customers? Maybe they don’t need faster systems, then they can just save on buying and maintaining processors. AMD additionally cited the example of an unnamed online retailer that had 60 dual-socket Intel Xeon Platinum 8280 servers (56 cores and 384 GB of memory per server) providing the required performance of 11 million Java operations per second. Moving to 33 dual-socket Epyc 7742 servers (128 cores and 1 TB of memory per server) reduced the number of servers by 45%, reducing maintenance costs by about the same.

Similar (very, very high) performance improvements are being made by AMD for a wide range of applications, including engineering simulations and structural analysis, as well as computational fluid dynamics, applications that are very demanding on server power:

In some of the tasks, performance gains of up to 95% are claimed, and sometimes the case is limited to a modest 58% (in fact, this is also a very impressive increase). Many large companies are interested in new products, AMD announced a collaboration with Cray , which does not need to be further described. Their collaboration with the Oak Ridge Laboratory and the US Department of Energy is to create the most powerful supercomputer Frontier , based on Epyc 7002 processors.

Cray also cooperates with other well-known partners, including the Formula 1 team Haas. The collaboration involves the use of the Cray CS500 supercomputer based on the Epyc 7002 for computational fluid dynamics, which is increasingly used in Formula 1 as a modern replacement for wind tunnel model testing.

Also important is the reduction in total cost of ownership (TCO) when switching to second-generation Epyc server processors. According to a loud statement from AMD, the new products completely change the economics of data centers (DPCs). The savings are especially noticeable in single-socket systems, which are 28% more energy efficient than competing Xeon Platinum 8280-based systems and provide higher density per server rack.

It turns out that a single-socket server on the new Epyc is no worse than the best two-socket one on Xeon (in terms of integer performance and data from AMD). Another advantage could be a reduced price for software that is priced by the number of sockets rather than cores. There are not too many such applications, and the rich capabilities of the Epyc 7002 in terms of memory size and bandwidth, as well as the number of PCIe 4.0 lanes are much more important — and in this even a single-socket server from AMD is not inferior to a two-socket competitor.

In other words, a server with 2500 cores based on two-socket Xeons with 8 GB of memory per core (virtual machine) can be replaced by half as many single-socket Epycs with the same 2500 cores and 8 GB of memory per core. They will consume up to 60% less power and can reduce the cost of licenses when calculated on the number of sockets (VMware vSphere Enterprise Plus). And the total total cost of ownership, including the cost of software, is reduced from $448 to $207 — by 54%.

In general, the top 64-core Epyc 7742 for $6950 (this is a lot, but look at the prices of a competitor) is almost half the price of the 28-core Xeon Platinum 8280M, and at the same time it is more than twice as fast as the latter in terms of SPECrate 2017. better — as much as four times!

In other examples of Intel competition, the $650 16-core Epyc 7282 competes against the $794 8-core Intel Xeon Silver 4215 in the market. It is clear that under such conditions, the AMD processor is twice as fast in integer performance and 2.5 times better in terms of price-to-performance ratio. The 2-core Epyc 7452 for $2025 competes with the 12-core Xeon Gold 6226 ($1776), and it’s not surprising that the new product from AMD is twice as good in terms of speed and price/performance ratio.

As you can see, Epyc 7002 solutions have a clear advantage on all fronts, at least in terms of integer performance. In terms of price and computing speed, AMD’s new products are about two to four times better than their competitor’s solutions — various Intel Xeon models. Add to that the best features in the form of more PCIe 4.0 lanes and a much lower total cost of ownership and you have a great product!

In practice, Epyc processors perform best in pure computing performance tasks like rendering. So, a pair of top 64-core Epyc 7742 showed a result close to the record in benchmark Cinebench R15 , scoring over 11,000 points. Almost the same result is shown on a system with as many as four Intel Xeon Platinum 8180 processors, but a pair of Epyc 7742s costs $14,000, and four Platinum 8180s cost $40,000 at official prices. Well, Epyc steam consumes half as much energy. And in a more modern test Cinebench R20 , a system on a pair of server flagships from AMD set an absolute world record, gaining 31833 points.

An interesting comparison was made by Italian researchers — a system on only one Epyc 7742 processor and a pair of Radeon VII accelerators achieves the same performance as the Japanese supercomputer NEC Earth-Simulator , put into operation in 2002 and remaining the most productive until 2004 — the peak theoretical is 40. 96 teraflops, and the one achieved in Linpack is 35.86 teraflops. It used 1 GHz NEC processors with a total of 5120 cores and a power consumption level of 3200 kW. A modern server based on an Epyc processor with a pair of powerful GPUs consumes orders of magnitude less energy, and it is clearly cheaper than super 15 years ago. It is clear that the comparison is rather arbitrary, GPUs are not equal in terms of CPU capabilities, but it clearly makes it clear how quickly microelectronics is developing.

The performance of Epyc server processors was also evaluated in the very popular Geekbench 4 test . A system of a pair of top-end $13,900 Epyc 7742 processors was significantly faster than four $52,000 Intel Xeon Platinum 8180M processors. Intel has no analogue to the top Epyc either in price or in the number of cores, so they compare servers with approximately the same number of cores on different CPUs. Four 28-core Xeon Platinum 8180Ms (112 cores and 224 threads) easily beat just two Epyc 7742s (128 cores and 256 threads). The AMD server scored 4876 points in the Geekbench test in a single-threaded test and 193554 points in multi-threaded, despite the fact that the result of a four-processor Xeon server (it was a Dell PowerEdge R840) is 4700 and 155050 points, respectively.

That is, even in terms of single-threaded performance, the top Epyc turned out to be better, not to mention a large number of threads. The difference may not seem too big, only up to 25% in a multi-threaded test, but if you also take into account the cost of the CPU, then Epyc processors cost almost four times cheaper than Xeon processors, and even with better performance. And while the Geekbench benchmark doesn’t have much in common with most real-world tasks, it’s fine as a synthetic benchmark for comparing peak computing performance.

Ecosystem and industry support

The AMD Epyc ecosystem continues to grow and expand with more than 60 partners supporting the new generation of processors since the day it was announced, from manufacturers like Gigabyte to independent vendors Broadcom, Micron and Xilinx. On the operating system side, support is provided by Microsoft and several Linux distributions (Canonical Linux, RedHat, and SUSE partnered with AMD for testing and certification). Collaboration with all these companies has helped to double the number of platforms using second-generation Epyc processors compared to the first.

Cloud services are indispensable these days, and the companies that offer them may well benefit from the new Epyc. From Microsoft, the head of the Microsoft Azure Compute division spoke at the event, who spoke about the company’s new solutions using Epyc 7002 in the form of virtual machines for high performance computing and desktops. In tasks such as microprocessor design, computational fluid dynamics, and the finite element method, the new server processors showed an increase in computing speed from 1.6 to 2.3 times!

The list of AMD partners who are interested in new products and announced support for 2nd generation Epyc processors is quite wide:

As part of the announcement of the new Epycs, AMD partners announced a collaboration with the company involving the use of Epyc 7002 processors. A Cray representative on stage announced that the US Air Force meteorological agency will use the Cray Shasta system using AMD processors Second generation Epyc to provide planetary and space weather information to the US Air Force and Army.

Even the great Google could not resist the temptation, announcing not only Google Cloud on AMD Epyc processors, but also the use of new processors in the internal infrastructure of the company’s data centers used for their own needs. AMD and Google have a rich history of cooperation, their millionth server in 2008 was based on an AMD chip, and in the case of the Epyc 7002, they are one of the first to use the latest platforms from this company in their data centers.

Yes, and virtual machines based on the second generation of Epyc, they also promise to launch — with different specializations: balanced in terms of computational cores and memory for a wide range of tasks, with high memory bandwidth for specialized calculations like financial simulations, weather forecasting, etc. Specialists Google believes that most tasks involving office applications and web servers will get the best price-performance ratio on the new Epyc 7002 configurations. The availability of such virtual machines is expected later this year.

Platform Microsoft Azure also announced new virtual machines for HPC workloads, cloud remote desktops, and rich applications, all powered by 2nd generation Epyc processors. A preview of these applications is available now. VMware and AMD Announce Collaboration to Support New Epyc 7002 Processor Security and Features on the VMware vSphere 9 Platform0048 .

AMD’s hardware partners also showed off-the-shelf solutions based on the new second-generation Epycs at the event. HPE and Lenovo announced new systems based on the Epyc 7002 family of processors at the event. Lenovo spoke about the new ThinkSystem SR655 and SR635 platforms specifically designed to unlock the full potential of the Epyc 7002.

These systems are ideal for use in video infrastructure, virtualization, software-defined storage and other applications where they are highly energy efficient. They became available in August, and together with AMD, Lenovo broke 16 world performance records, including the most energy efficient server (according to the SPECpower_ssj 2008 test).

HPE also announced continued support for Epyc processors, including a wide range of 2nd generation systems including the HPE ProLiant DL385, HPE ProLiant DL325 Gen 10 and HPE Apollo 35 servers available from the date of announcement. At the event, Dell showcased new Epyc 7002-optimized servers coming soon.

Along with the announcement of the new Epyc, several other companies presented their products based on the second generation platform, although not from the stage. Company Tyan showed the Transport SX TS65-B8036 2U server, suitable for creating a corporate storage system. It has the ability to install one Epyc 7002 processor, sixteen DDR4-3200 memory modules up to 4 TB, support for twelve 3.5-inch drives and four front-access NVMe, as well as six PCIe 4.0 x8 slots.

Also featured was the Tomcat SX S8036 EATX form factor server board, also designed for a single Epyc 7002 processor up to 225W. To install RAM, it has sixteen DDR4-3200 slots, eight PCIe x8 SlimSAS slots, and one PCIe x24 and PCIe x16 slots each. You can use up to 20 SATA connections, up to 12 NVMe and a pair of M.2.

Introduced new products based on Epyc 7002 platform and company ASRock Rack . One of the new solutions is the 2U4G-Epyc 2U Server, designed for one Epyc 7002 processor. This server can be equipped with four dual-slot or eight single-slot GPU accelerators as a HPC solution. A 4-node high-density 2U server was also announced — 2U4N-F-ROME-M3 . Each node has four 2.5-inch bays for SATA or NVMe drives, as well as PCIe x24 and PCIe x16 slots (for some reason, version 3. 0 is indicated, not 4.0).

A pair of server motherboards were also shown — the first of them is ROMED8QM-2T , it is designed to install a single Epyc 7002 processor, has eight DDR-3200 memory slots, two 10 Gigabit network ports, and two PCIe 3.0 x16 slots . The second model ROMED8HM3 is optimized for multi-node platforms, it also offers the ability to install one Epyc 7002 and has eight DIMM slots, eight SATA ports and a pair of M.2. Additionally, the board has one PCIe 4.0 x24 and one PCIe 4.0 x16 slot.

The company Asus did not stand aside either, which also presented servers and motherboards designed for second-generation AMD Epyc processors. They announced a two-socket 2U rack server — RS720A-E9-RS24-E . It has 24 SATA and SAS drive bays and a pair of M.2 SSDs, seven full-size PCIe 3.0 x16 slots running at x8 speeds, and one PCIe 3.0 x16 slot for a low-profile expansion card.

The second novelty of Asus — RS500A-E10-RS12-U . This is already a compact 1U server with the ability to install one Epyc 7002 processor and 16 DDR4-3200 sockets (up to 2 TB of memory). The server also includes 12 drive bays for NVMe, SATA, SAS and one M.2. The KRPA-U16 server motherboard was also introduced with 16 DDR4-3200 slots, support for up to 12 SATA drives and PCIe slots in different configurations (PCIe4.0 x24, PCIe 4.0 x8, PCIe 3.0 x8, a pair of PCIe 3.0 x16).

Company Supermicro showed new servers, including the 1U-format model AS-1114S-WTRT , designed for various tasks, such as database processing. The board has one slot for a second-generation Epyc processor, and up to 2TB of DDR4 RAM can be installed in eight slots. The board has a pair of 10-gigabit network controllers and supports up to ten 2.5-inch drives and two M.2 SSDs.

In addition, a two-socket server was announced AS-2124BT-HTR supports up to 4 TB of memory and various storage subsystem configurations. Or the single-socket AS-2014TP-HTR with one Epyc 7002 processor and support for three 3.5-inch drives and one M.2 SSD.

Gigabyte also announced a whole line of servers for the new Epyc 7002 platform — 17 new server platforms at once on these processors. They have released R-series general purpose servers, offered in 1U and 2U formats. Also showed h342-Z11 — high-density 2U server that accepts four Epyc 7002 processors and features 32 memory slots, four 2.5″ SSDs, eight M.2 SSDs, and eight low-profile PCIe x16 slots.

The second new product introduced is the G482-Z50 server, designed for high-performance computing with GPU-based accelerators. The server allows you to install a pair of Epyc 7002 processors, 32 DDR4-3200 memory modules and up to ten graphics accelerators. It also has two network ports with a speed of 10 gigabits and 1 gigabit. The system can also be configured with up to twelve 3. 5″ SAS/SATA drives, eight NVMe drives, and two 2.5″ SSD drives.

Gigabyte’s servers based on the new 2nd generation Epyc processors are claimed to have set eleven world performance records: 7 records in the SPEC CPU 2017 test and four records in the SPECjbb 2015. Epyc 7002 processors from competitors. These records were set by the RIG2-Z90 dual-socket server and the R272-Z30 single-socket server, with the top-end Epyc 7742 64-core processors installed, of course.

All in all, the support from AMD partners seems to be quite strong — it seems that they were impressed with the capabilities of the new Epyc 7002 and decided not just to test these solutions in prototypes, but to transfer at least part of their infrastructure to them. This is exactly what the first generation of Epyc lacked, and there is great hope that the second generation will indeed turn the tide.

By the way, where are the new Threadripper?

What about the Ryzen Threadripper, processors similar to Epyc in terms of hardware, but designed for the high-performance desktop niche? Will the next generation be released with an increased number of cores, based on a more successful chiplet layout? Officially, the head of AMD promised to reveal details about the new generation of Threadripper by the end of the year, and it is known from leaks that such solutions have long been tested both inside and outside the company. Including tested a 32-core processor with an operating frequency of 3.6 GHz, which in the tests was ahead of the best model of the previous generation. So Threadripper fans have good reason to wait for new CPUs.

AMD is indeed gearing up to bring to market the new 3rd generation Ryzen Threadripper processors derived from Epyc Rome, which can have up to 64 cores, support an eight-lane memory bus, and support 128 PCIe 4.0 lanes. However, for the HEDT platform, they can change the I / O chiplet, simplifying the solution for enthusiasts, leaving a more functional option for competing with Xeon W processors. Indeed, for processors aimed at enthusiasts and gamers, four memory channels and 64 PCIe lanes will be quite enough 4.0, but the line for workstations may need more feature-rich solutions with support for eight-channel mode and 128 PCIe 4.0 lanes. It looks like the older version of Threadripper 3000 processors will be even closer to Epyc server processors.

To support AMD’s third generation of HEDT processors, three new chipsets will be offered: TRX40, TRX80 and WRX80 . The TRX40 is similar to the X570 but with quad-channel memory support, while the TRX80 and WRX80 use a full set of I/O with eight-channel memory and more PCIe lanes. Many companies are almost ready to release motherboards based on new chipsets, in particular, Asus has prepared such solutions as Prime TRX40-Pro and ROG Strix TRX40-E Gaming .

The big question is exactly when AMD will announce the Ryzen Threadripper 3000 series. Many expect this to happen on the 7th of some month, as for AMD this year this figure is very remarkable, because it echoes the 7nm process technology used. Radeon VII released on February 7th, Ryzen 3000 and Radeon RX 5700 on July 7th, Epyc 7002 on August 7th, and the new Threadripper will be released… it’s still unknown when. On September 7, when the IFA 2019 exhibition was held in Berlin, they did not come out and maybe they will be announced one or two months later — for example, on November 7.

When it comes to the performance of future Threadrippers, there’s a lot to look forward to. More recently, Geekbench 4 benchmark revealed data on an unannounced 32-core third-generation Ryzen Threadripper processor (codenamed Sharkstooth). This is still an engineering sample with 32 cores and 64 threads, as well as 128 MB of L3 cache. In the Geekbench test, this CPU was the most productive among HEDT systems, scoring 5523 points in single-threaded and 68576 points in multi-threaded modes.

Compare this to 4800 and 36000 points for the Ryzen Threadripper 2990WX and 5148 and 38000 points for the Intel Xeon W-3175X. Moreover, in the Windows version there were some problems with the multi-threaded part of the test, and on Linux the result was even higher — as much as 94772! Thus, the yet unreleased CPU from AMD shows very impressive results, and at a not too high price, it will allow the company to press Intel’s products in high-performance desktop systems as well.

True, Intel is already ripening, albeit conditional, but still an answer. For a long time, the Xeon W-3175X was the only HEDT offering based on the LGA 3647, but it looks like things will change soon. According to some rumors, a similar 26-core CPU with a clock speed of up to 4.1 GHz will appear on the market. Also, Intel may lower prices for the Xeon W-3175X to increase its attractiveness.

AMD shows on its Twitter page how Ryzen Threadripper processors help in real-life tasks. They posted a video about the studio TourGigs , which specializes in video filming of musical performances. These days, they increasingly have to serve live webcasts of concerts, and systems based on Ryzen Threadripper processors help a lot in this matter, providing the necessary processing power for video encoding. TourGigs says they use Ryzen Threadripper 29The 50WX and 2990WX, and even the second-gen Threadripper, can handle multiple streams in 4K at the same time. It also greatly reduces the time required to copy and process the footage. Surely they are very interested in the third generation of such processors.

In the meantime, such new-generation processors have not even been announced yet, the company Velocity Micro has released new workstations based on the Epyc 7002 server — in single and dual socket configurations, including models with 128 processing cores, but in the usual desktop form. factor. These systems are some of the most powerful workstations in the world, especially when the power of Epyc is combined with the performance of a pair of Nvidia Quadro RTX or AMD Radeon Pro. Purely in floating point processor performance, these solutions are up to four times faster than first-generation Epyc workstations.

The ProMagix HD360A Workstation specializes in multi-threaded CPU-intensive tasks, which involves installing a pair of new Epyc 7002 processors, supporting up to 128 cores and 256 computational threads. The cost of such workstations is not the most humane (see the screenshot above), of course, but they will be in demand among engineers, artists, designers, scientists, video editors, and so on — all those who care about the maximum number of CPU cores for the most complex calculations.

Market Perspectives and Conclusions

In summary, second-generation Epyc processors provide high performance at a very competitive cost of ownership, optimizing profitability in enterprise applications, virtualization, cloud and high performance computing. The Epyc 7002 offers a unique combination of record-breaking performance, the largest amount of memory, and the highest I/O bandwidth. All this contributes to achieving the highest possible performance in high-performance computing, while advanced security technologies provide protection against various attacks at the hardware level.

The main differences and advantages of the new models are the use of improved computing cores of the Zen 2 architecture, the chiplet layout, which made it possible to increase the number of computing units, as well as the use of the most advanced microelectronic production technology today — 7 nm. AMD’s close collaboration with Taiwanese contract manufacturer TSMC has helped significantly improve the performance and power consumption of the new CPUs. A competitor manufactures chips in its own factories and has been struggling for several years to master the 10 nm process technology, the first products based on which are scheduled to ship only next year, and AMD is trying to take advantage of an unexpected advantage by attracting a number of large customers previously devoted to Intel products.

The result is AMD’s truly record-breaking performance, breakthrough packaging, low price, and total cost of ownership, raising the bar to an unprecedented level. The top processor of the new Epyc line contains 64 cores at once, capable of calculating 128 computational threads simultaneously. At the same time, their operating frequency and the number of executable instructions per clock are large enough to become the most productive x86-compatible processor in almost all conditions! When was it that Intel competing with them missed the rival so far? Moreover, the new Epyc 7002 models also have functional advantages, such as support for a large number of PCI Express 4. 0 lanes per processor, as well as the DDR4-3200 memory standard. And if this is not enough for someone, then the new CPUs offer advanced security features in the form of a dedicated ARM coprocessor.

Doubling the number of compute cores and doubling the memory bandwidth compared to the first generation of Epyc results in an almost linear performance gain in a large number of server tasks, and the advent of 64-core processors per socket cannot be overestimated. The tasks and demands of customers are constantly becoming more complex, as well as new applications for computing systems. And the 64-core Epyc 7002 processors have significantly better performance than their price-competing Xeons. Although Intel processors support more sockets, they are unlikely to beat single-socket systems based on Epyc 7002. And for more demanding applications, AMD has solutions designed for dual-socket systems that have the advantage not only in core count, but also in memory bandwidth and cache size, which is critical for some tasks.

The top server processor Epyc 7742, when rendered in Blender, provides more than 70% better performance in a set of tests with different scalability in terms of the number of cores, compared to the previous flagship in the form of Epyc 7601, and in a dual-processor configuration, a pair of Epyc 7742 almost 60% faster than their predecessors in the form of two Epyc 7601. If we take two generations of Epyc processors comparable in terms of the number of cores, then two 32-core 7502 models outperform a pair of Epyc 7601 from the first generation by 30% -40%, depending on the configuration (one — or two-socket).

Compared to the Intel Xeon, taking into account the prices, the situation becomes even more interesting. With the current prices of the competitor’s processors, AMD’s solutions clearly dominate, especially if you take into account the price-performance ratio. A single Epyc 7742 at $6,950 or a pair of Epyc 7502s at $5,200 slightly outperforms the Intel Xeon Platinum 8280 at around $10,000. The Epyc 7002 family processors are clearly faster than similar Intel solutions, especially when it comes to applications like render farms, in which the new AMD server processors outperform the Xeon Platinum 8280 by a large margin, and even at a lower price.

One might argue that the power consumption of Epyc 7002 processors is slightly higher than that of Intel Cascade Lake, but the performance of AMD solutions is also higher. And it is in terms of energy efficiency in the second generation of Epyc that there was a very large increase, which is not surprising, given the 7nm process technology used and the improved Zen 2 architecture. While the competitor continues to suffer from problems with the development of 10nm production. The combination of AMD’s success and Intel’s failures has left the Epyc 7002 line looking fantastically good value.

Comparing them to the best Intel Xeons available today is like beating a baby. Especially in those tasks where the number of cores is very important, in which both the top Epyc 7742 and 32-core (and other junior) models can be very profitable. But this time will not last forever. For real pressure on Intel, AMD has about a year, and then the first will have new solutions that they have already rushed to announce. Cooper Lake processors may keep some partners from switching to AMD simply because the server market is very conservative and inert. And the most important task for AMD now is building an ecosystem, porting software and adapting it. Naturally, with such powerful hardware support, interest from potential consumers in the second generation Epyc has grown significantly.

Analysts predict an increase in the market share of AMD server processors up to 25% in the next ten years. It would seem that this is too long to wait, but this is normal for the conservative market of corporate clients, because they “swing” for a long time. AMD competes with Intel to supply cloud service data center chips, and they have already been able to win Google and Twitter as customers for the new Epyc processors. Moreover, Google not only uses second-generation Epyc processors in its data centers, but will soon offer them to third-party developers as a cloud computing rental service. Major AMD customers, including Microsoft, Twitter, Google, HPE and Amazon, highlighted the ability to significantly reduce the operating costs of maintaining servers based on Epyc 7002 — up to 25% -50% compared to competitor solutions.

Yes, Intel is still the main supplier of server processors, and continues to dominate with over 90% of the market, but AMD is clearly coming, thanks to the success of both generations of Epyc server processors. And if AMD’s server market share in the first quarter of this year was less than 3%, then in the second quarter it rose to 5%. But Intel still has such a strong position that it will not be possible to seriously oust it in the near future, it takes years to gradually increase its market share. We should not forget about the economic opportunities of Intel — they can temporarily give up high profits, motivating partners with discounts on equipment and services. And even with all the delights of the Epyc 7002 in terms of price and performance, the market is simply not able to quickly adapt to solutions from another supplier.

AMD is well aware of all this, and already at the Epyc 7002 launch event, company representatives said that they had already completed the design of the next generation of server processors, codenamed “Milan”, using Zen 3 microarchitecture cores and improved 7nm + manufacturing technology (in all likelihood using EUV lithography), and are currently working on the next generation of «Genoa» with Zen 4 cores, about which little is known yet. Not a bad bid to keep producing great server processors with an edge over the competition — the industry and investors love to have clear plans. There is a chance that gradually the water will still sharpen the stone in the form of market conservatism.

Of course, everyone will not rush to change Xeon to Epyc abruptly. The market is very inertial, and there are no sudden movements here. It is all the more important that AMD has not only released a couple of successful generations of its server processors, but also revealed plans for many years to come. Partners need to feel that the release of new solutions, as well as their support, will not end next year, and their investment in Epyc will pay off in the long term. Reputation in such a serious matter has been gaining more than one year, and AMD, although not at the beginning of its journey, is still not on the same level with its competitors.

Also, do not forget that the competitor nevertheless announced, albeit rather conditional, but still the answer to Epyc in the form of new Xeon Platinum 9200. These are Cooper Lake family processors in LGA format, including up to 56 cores, unlike 28-core Cascade Lake-SP from the Xeon Platinum 8200 series. Also, systems based on the new Cooper Lake processors will receive higher memory bandwidth and will support artificial intelligence algorithm acceleration tools. But new CPUs from Intel will come out only in the first quarter of next year.

These processors will be based on the Intel Xeon Platinum 9200 series, which was announced in April and is available only as part of a complete system. For example, the Intel Xeon Platinum 9282 processor with 56 cores and support for 112 threads, with a base frequency of 2.6 GHz and a turbo frequency of 3.8 GHz. The processor has a 77 MB L2 cache, supports 40 PCIe lanes and 12 DDR4-2933 lanes. The problem with these solutions is that they are made according to the 14 nm process technology and therefore have a high power consumption of up to 400 W. The Epyc 7002 looks good against their background, and it’s not even clear how much Intel’s new products will cost, given that the Xeon Platinum 8280 costs $10,000.

In light of all of the above, AMD’s share growth should really accelerate with the release of Epyc Rome, as they are well ahead of their Xeon competitors in most important parameters. Some industry analysts predict AMD’s share will soon rise to 15% by the end of next year. Let’s watch the changes, because the release of new Epyc should start to affect the share already in the next quarter, although AMD is still at the very beginning of the production of such complex chips, and should really accelerate a little later.

Summing up, once again we note that in its new server processors AMD offers 1.5-2 times greater multi-threaded performance compared to Xeon. And among server solutions of the lower price range, and even single-socket models, some Epycs have no competition at all, they are much faster and cheaper than their counterparts from Intel, and they also offer more options for installing system memory and devices connected via PCIe. For ridiculous money by the standards of this market, you can get a large number of computing cores that are practically not inferior to those competing in single-threaded performance.

From a purely technical standpoint, AMD appears to have beaten Intel in the server market by a wide margin. Tasks in which the new Epyc are inferior to Xeon are very rare, and given the difference in cost, it will be even more difficult to find them. Until new Intel solutions are ready, they have, in fact, one way to compete — lowering the prices of solutions for the most important customers. They will have to wait for the 56-core Xeon Platinum 9200 series to arrive with gritting their teeth. And even then — the 14-nanometer Cooper Lake will be available to selected partners, and its price is unlikely to be announced to the public. If we talk about an even more distant future in the form of the Ice Lake microarchitecture, which promises an increase in single-core performance by 18%, eight memory controllers and a 10 nm process technology, then the first solutions are promised even later — already in the second half of 2020.

So, congratulations to AMD on the great products and a very serious blow to the competitor’s positions and in the server segment. The 64-core Epyc chips, with all their capabilities, offer a leap in performance and functionality that has never been equaled, perhaps never before. Of course, Intel solutions have their advantages, such as tight integration with various accelerators and Intel Optane DC non-volatile memory, but all these things are relatively minor. So the main task of Intel in the near future is to somehow keep existing and potential partners from turning their attention to Epyc processors and starting to invest in this platform.

And AMD, in turn, will try to convince potential customers to make such a transition. They’ve been pretty sly since the first generation of Epyc, focusing on promoting their solutions to major cloud providers while driving down promotion costs. Intel has a dominant position in the data center and strong relationships with major hardware manufacturers, but AMD is trying to seize the initiative. And since the industry has long needed real competition, including to contain prices, the Epyc 7002 may well meet all expectations, and achieve considerable success.

AMD’s new processors are changing the server ecosystem by offering enough single-socket performance for most needs. One processor does not mean any compromises in the number of cores, performance and memory, as well as I / O systems. With a single Epyc 7002 processor, you can create a high-performance server with a reduced total cost of ownership. And if this is not enough, then Epyc also supports two-socket configurations with even more CPU cores. If this is not yet an epic victory, then a very strong application for it. Although it is still too early to write off Intel. In general, the fight will be hot, and it is just beginning.

AMD EPYC Embedded 3251 processor review: features, benchmark tests

The EPYC Embedded 3251 processor was released by AMD, release date: 21 Feb 2018. The processor is designed for server computers and is built on the Zen architecture.

Processor unlocked for overclocking. The total number of cores is 8, threads are 16. The maximum clock frequency of the processor is 3.1 GHz. Technological process — 14 nm. Cache size: L1 — 768 KB, L2 — 4 MB, L3 — 16 MB.

Supported memory type: DDR4-2666. Maximum supported memory size: 512 GB.

The maximum number of processors in the configuration is 1. Power consumption (TDP): 50 Watt.

Benchmarks

PassMark
Single thread mark
Top1 CPU
This CPU
PassMark
CPU mark
Top1 CPU
This CPU
118142
Title Meaning
PassMark — Single thread mark 1872
PassMark — CPU mark 13965

Features

Architecture name Zen
Production date 21 Feb 2018
Ranking 641
Applicability Server
Support 64 bit
Base frequency 2. 5 GHz
Crystal area 192mm
Level 1 cache 768KB
Level 2 cache 4MB
Level 3 cache 16MB
Process 14nm
Maximum frequency 3.1 GHz
Number of cores 8
Number of threads 16
Number of transistors 4800 million
Unlocked
ECC support
Maximum number of memory channels 2
Maximum memory bandwidth 39. 74 GB/s
Maximum memory size 512GB
Supported memory types DDR4-2666
Maximum number of processors in configuration 1
Power consumption (TDP) 50 Watt
Integrated LAN
Number of PCI Express lanes 32
PCI Express revision 3.0
PCIe configurations x16, x8, x4, x2
Total number of SATA ports 8
USB revision 3.

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