AMD EPYC 7451 Benchmarks and Review 24 Cores of EPYC Fury
AMD EPYC In Hand Cover
Today we have our Linux benchmarks and review of the AMD EPYC 7451 CPU in a single-socket configuration. The AMD EPYC 7451 is a dual socket capable part which is we see the most common deployment scenarios for the chip. In practice, we expect the most common single socket EPYC 7451 deployment scenario will be in dual socket capable servers that eye the potential of adding a second CPU later in the lifecycle. Otherwise, the AMD EPYC 7401P makes a more compelling single socket server chip which is part of AMD’s product and pricing strategy.
At STH, we have now published benchmarks and reviews dozens of AMD EPYC 7000 series and Intel Xeon Scalable configurations. We have tested a full range along with a full range of Intel Xeon Bronze and Silver offerings as well as many in the Gold and Platinum line. Suffice to say, we are extremely impressed with the AMD EPYC 7000 series thus far and the results herein will show you why.
Key stats for the AMD EPYC 7451: 24 cores / 48 threads, 2.3GHz base and 2.9GHz all core turbo and 3.2GHz max turbo boost with a whopping 64MB L3 cache. The CPU features a 180W TDP. Here is the AMD product page with the feature set. Here is the lscpu output for the processor in dual socket mode:
AMD EPYC 7451 2P Lscpu
The key here is that the single socket AMD EPYC 7451 uses a four NUMA node implementation. 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:
For those still unfamiliar with the AMD EPYC 7000 series here is AMD’s key value proposition bullets:
- More cores for less money. This chip retails for under $2600.
The lowest price 24 core Intel Xeon Scalable is the Intel Xeon Platinum 8160 at $4700. Intel Xeon Gold CPUs max out with the Intel Xeon Gold 6152 with 22 cores at $3655. - More DRAM capacity. Each AMD EPYC has 8 channel memory (Xeon Scalable has 6 channel). In 16 DIMMs per socket, the AMD EPYC 7000 series can support up to 2TB of RAM per socket. The “M” series Xeon Scalable SKUs can only hit 1.5TB per socket, up from 768GB on a standard CPU, and carry a $3000 price tag for the privilege.
- 128 high speed I/O (PCIe/ SATA III) lanes in either single or dual socket mode. In single socket mode, AMD has up to 128 I/O lanes while Intel essentially has 48. You can learn more in our Single Socket AMD EPYC 7000 FAQ Answers to Common Questions.
- EPYC 7000 series is x86. You can get an Intel alternative architecture without needing major code ports or special support. Enterprise software will just work.
AMD EPYC 7000 series also has a few single socket only SKUs that have extremely low pricing.
In the 24-core class, the single socket value leader is the AMD EPYC 7401P. You can read our AMD EPYC 7401P Linux Benchmarks and Review to learn more. This is a higher frequency, dual socket capable chip.
Next, we are going to look at our test setup and configuration before we move on to benchmarks, power consumption and our market positioning analysis.
AMD Epyc 7451 review | 61 facts and highlights
57points
AMD Epyc 7451
AMD Epyc 7451
Why is AMD Epyc 7451 better than the average?
- CPU threads?
48vs27.68 - CPU speed?
24 x 2.3GHzvs35.36GHz - Maximum memory bandwidth?
341GB/svs92.93GB/s - L3 cache?
64MBvs38.04MB - Memory channels?
8vs4.94 - Semiconductor size?
14nmvs15.14nm - L1 cache?
2304KBvs833.96KB - L2 cache?
12MBvs9.
54MB
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Price comparison
User reviews
Performance
CPU speed
24 x 2.3GHz
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.
CPU threads
More threads result in faster performance and better multitasking.
turbo clock speed
3.2GHz
When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
L3 cache
A larger L3 cache results in faster CPU and system-wide performance.
L1 cache
2304KB
A larger L1 cache results in faster CPU and system-wide performance.
L2 cache
A larger L2 cache results in faster CPU and system-wide performance.
L2 core
0.5MB/core
More data can be stored in the L2 cache for access by each core of the CPU.
clock multiplier
Unknown. Help us by suggesting a value.
The clock multiplier controls the speed of the CPU.
Has an unlocked multiplier
✖AMD Epyc 7451
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
Supports ECC memory
✔AMD Epyc 7451
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.
maximum memory bandwidth
341GB/s
This is the maximum rate that data can be read from or stored into memory.
DDR memory version
Unknown. Help us by suggesting a value.
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.
maximum memory amount
2000GB
The maximum amount of memory (RAM) supported.
RAM speed
2666MHz
It can support faster memory, which will give quicker system performance.
memory channels
More memory channels increases the speed of data transfer between the memory and the CPU.
bus speed
Unknown. Help us by suggesting a value.
The bus is responsible for transferring data between different components of a computer or device.
bus transfer rate
Unknown. Help us by suggesting a value.
The bus is responsible for transferring data between different components of a computer or device.
eMMC version
Unknown. Help us by suggesting a value.
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
uses multithreading
✖AMD Epyc 7451
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.
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.
Has AES
✔AMD Epyc 7451
AES is used to speed up encryption and decryption.
Has AVX
✔AMD Epyc 7451
AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.
bits executed at a time
Unknown. Help us by suggesting a value.
NEON provides acceleration for media processing, such as listening to MP3s.
front-end width
Unknown. Help us by suggesting a value.
The CPU can decode more instructions per clock (IPC), meaning that the CPU performs better
Has F16C
✔AMD Epyc 7451
F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
Has FMA3
✔AMD Epyc 7451
FMA3 is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
Has FMA4
✖AMD Epyc 7451
FMA4 is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
Benchmarks
Cinebench R20 (multi) result
Unknown. Help us by suggesting a value.
Cinebench R20 is a benchmark tool that measures a CPU’s multi-core performance by rendering a 3D scene.
Cinebench R20 (single) result
Unknown. Help us by suggesting a value.
Cinebench R20 is a benchmark tool that measures a CPU’s single-core performance by rendering a 3D scene.
Geekbench 5 result (multi)
Unknown. Help us by suggesting a value.
Geekbench 5 is a cross-platform benchmark that measures a processor’s multi-core performance.
(Source: Primate Labs, 2023)
Geekbench 5 result (single)
Unknown. Help us by suggesting a value.
Geekbench 5 is a cross-platform benchmark that measures a processor’s single-core performance. (Source: Primate Labs, 2023)
PassMark result
This benchmark measures the performance of the CPU using multiple threads.
PassMark result (single)
This benchmark measures the performance of the CPU using a single thread.
performance per watt
Unknown. Help us by suggesting a value.
This means the CPU is more efficient, giving a greater amount of performance for each watt of power used.
Blender (bmw27) result
Unknown. Help us by suggesting a value.
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.