Intel Core i5-8400 vs i7-8700K
| 14 Nov19|PCGamer AMD Ryzen 9 3950X review |
10 % | Hitm2 11%, FarC5 12%, StrangeB 0%, TWarW2 13%, SotTR 12%, ACO 19%, MetroEx 1%, MESoW 5%, Divis2 12% | ||||
| 28 May20|Techpowerup Intel Core i5-10400F Review — Six … |
6 % | FarC5 12%, BFV 9%, SotTR 0%, Rage2 4%, Witcher3 1%, Civ6 9%, ACO 20%, Sekiro 7% | MetroEx 1%, Wolf2 0% | |||
| 30 Oct19|Gamers Nexus Intel i9-9900KS Review: Overclocki… |
12 % | Hitm2 22%, TWarW2 12%, F118 7%, GTAV 4%, SotTR 15% |
| Memory Avg. |
90.1 Pts | Slightly lower memory latency. +6% |
84.9 Pts | |||
| 1-Core Avg. Single Core Speed |
128 Pts | Faster single-core speed. +13% |
113 Pts | |||
| 2-Core Avg. Dual Core Speed |
249 Pts | Faster dual-core speed. +11% |
224 Pts | |||
| 4-Core Avg. Quad Core Speed |
466 Pts | Slightly faster quad-core speed. +7% |
434 Pts | |||
| 8-Core Avg. Octa Core Speed |
770 Pts | Much faster octa-core speed. +37% |
564 Pts |
| Memory OC Memory Latency |
96. 5 Pts |
+2% | 94.2 Pts | |||
| 1-Core OC Single Core Speed |
148 Pts | Faster OC single-core speed. +23% |
120 Pts | |||
| 2-Core OC Dual Core Speed |
292 Pts | Faster OC dual-core speed. +23% |
237 Pts | |||
| 4-Core OC Quad Core Speed |
558 Pts | Faster OC quad-core speed. +18% |
471 Pts | |||
| 8-Core OC Octa Core Speed |
892 Pts | Much faster OC octa-core speed. +36% |
657 Pts |
| Age Newest |
63 Months | 63 Months | ||||
| TDP Thermal Design Power (TDP) |
95 Watts | 65 Watts | Much more energy efficient. +32% |
|||
| Cores CPU Processing Cores |
6 cores | 6 cores | ||||
| Threads CPU Processing Threads |
12 threads | Hugely higher thread count. +100% |
6 threads | |||
| Lithography Manufacturing process |
14 nm | 14 nm | ||||
| Base Clock Base Clock Speed |
3.7 GHz | Much faster base frequency. +32% |
2.8 GHz | |||
| Turbo Clock Turbo Clock Speed |
4.7 GHz | Faster turbo frequency. +17% |
4 GHz | |||
| 64-Core OC Multi Core Speed |
1147 Pts | Much faster OC 64-core speed. +70% |
675 Pts | |||
| 64-Core Avg. Multi Core Speed |
971 Pts | Much faster 64-core speed. +65% |
588 Pts |
| Series CPU Architecture |
Coffee Lake | Coffee Lake | ||||
| Socket Motherboard Socket |
FCLGA1151 | FCLGA1151 | ||||
| Graphics Integrated Graphics |
UHD 630 | UHD 630 | ||||
| Cache Cache |
12 MB | 9 MB | ||||
| Max Turbo Frequency Max Turbo Frequency |
4. 70 GHz |
4.00 GHz | ||||
| Thermal Solution Specification Thermal Solution Specification |
PCG 2015C (130W) | PCG 2015C (65W) | ||||
| Graphics Max Dynamic Frequency Graphics Max Dynamic Frequency |
1.20 GHz | 1.05 GHz | ||||
| Hyper-Threading Tech Intel® Hyper-Threading Technology ‡ |
Yes | No | ||||
| TSX-NI Intel® TSX-NI |
Yes | No | ||||
| vPro Tech Intel® vPro™ Technology ‡ |
Yes | No | ||||
| Stable Image Platform Program (SIPP) Intel® Stable Image Platform Program (SIPP) |
Yes | No | ||||
| Trusted Execution Tech Intel® Trusted Execution Technology ‡ |
Yes | No | ||||
| More specs » | More specs » |
Intel Core i5+8400 vs Intel Core i7-8700K: What is the difference?
54points
Intel Core i5+8400
59points
Intel Core i7-8700K
Comparison winner
vs
66 facts in comparison
Intel Core i5+8400
Intel Core i7-8700K
Why is Intel Core i5+8400 better than Intel Core i7-8700K?
- 30W lower TDP?
65Wvs95W
Why is Intel Core i7-8700K better than Intel Core i5+8400?
- 32.
14% faster CPU speed?
6 x 3.7GHzvs6 x 2.8GHz - 6 more CPU threads?
12vs6 - 0.7GHz higher turbo clock speed?
4.7GHzvs4GHz - 39.24% higher PassMark result?
16270vs11685 - 3MB bigger L3 cache?
12MBvs9MB - Has an unlocked multiplier?
- 20.18% higher PassMark result (single)?
2728vs2270 - 0.5MB/core more L3 cache per core?
2MB/corevs1.5MB/core
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Price comparison
Cheap alternatives
User reviews
Overall Rating
Intel Core i5+8400
3 User reviews
Intel Core i5+8400
8.
3/10
3 User reviews
Intel Core i7-8700K
1 User reviews
Intel Core i7-8700K
10.0/10
1 User reviews
Features
Value for money
9.3/10
3 votes
10.0/10
1 votes
Gaming
7.7/10
3 votes
10.0/10
1 votes
Performance
8.7/10
3 votes
10.0/10
1 votes
Reliability
9.0/10
3 votes
10.0/10
1 votes
Energy efficiency
9.0/10
3 votes
10.0/10
1 votes
Performance
CPU speed
6 x 2.8GHz
6 x 3.7GHz
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
4.7GHz
When the CPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
Has an unlocked multiplier
✖Intel Core i5+8400
✔Intel Core i7-8700K
Some processors come with an unlocked multiplier which makes them easy to overclock, allowing you to gain increased performance in games and other apps.
L2 cache
A larger L2 cache results in faster CPU and system-wide performance.
L3 cache
A larger L3 cache results in faster CPU and system-wide performance.
L1 cache
A larger L1 cache results in faster CPU and system-wide performance.
L2 core
0.
25MB/core
0.25MB/core
More data can be stored in the L2 cache for access by each core of the CPU.
L3 core
1.5MB/core
2MB/core
More data can be stored in the L3 cache for access by each core of the CPU.
Benchmarks
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.
Geekbench 5 result (multi)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
Geekbench 5 is a cross-platform benchmark that measures a processor’s multi-core performance. (Source: Primate Labs, 2023)
Cinebench R20 (multi) result
Unknown. Help us by suggesting a value.
(Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
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. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
Cinebench R20 is a benchmark tool that measures a CPU’s single-core performance by rendering a 3D scene.
Geekbench 5 result (single)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
Geekbench 5 is a cross-platform benchmark that measures a processor’s single-core performance. (Source: Primate Labs, 2023)
Blender (bmw27) result
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value.
(Intel Core i7-8700K)
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.
Blender (classroom) result
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
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.
performance per watt
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
This means the CPU is more efficient, giving a greater amount of performance for each watt of power used.
Integrated graphics
GPU clock speed
350MHz
350MHz
The graphics processing unit (GPU) has a higher clock speed.
GPU turbo
1050MHz
1200MHz
When the GPU is running below its limitations, it can boost to a higher clock speed in order to give increased performance.
GPU execution units
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
A graphics processing unit (GPU) with a greater number of execution units can deliver better graphics.
supported displays
Using multiple displays you can create a larger workspace, making it easier to work across multiple apps.
DirectX version
DirectX is used in games, with newer versions supporting better graphics.
OpenGL version
OpenGL is used in games, with newer versions supporting better graphics.
OpenCL version
Unknown.
Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
Some apps use OpenCL to apply the power of the graphics processing unit (GPU) for non-graphical computing. Newer versions introduce more functionality and better performance.
texture mapping units (TMUs)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
TMUs take textures and map them to the geometry of a 3D scene. More TMUs will typically mean that texture information is processed faster.
render output units (ROPs)
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
The ROPs are responsible for some of the final steps of the rendering process, writing the final pixel data to memory and carrying out other tasks such as anti-aliasing to improve the look of graphics.
Memory
RAM speed
2666MHz
2666MHz
It can support faster memory, which will give quicker system performance.
maximum memory bandwidth
41.6GB/s
42.7GB/s
This is the maximum rate that data can be read from or stored into memory.
DDR memory version
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.
memory channels
More memory channels increases the speed of data transfer between the memory and the CPU.
maximum memory amount
The maximum amount of memory (RAM) supported.
bus transfer rate
The bus is responsible for transferring data between different components of a computer or device.
Supports ECC memory
✖Intel Core i5+8400
✖Intel Core i7-8700K
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.
eMMC version
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
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.
bus speed
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown. Help us by suggesting a value. (Intel Core i7-8700K)
The bus is responsible for transferring data between different components of a computer or device.
Features
uses multithreading
✔Intel Core i5+8400
✔Intel Core i7-8700K
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.
Has AES
✔Intel Core i5+8400
✔Intel Core i7-8700K
AES is used to speed up encryption and decryption.
Has AVX
✔Intel Core i5+8400
✔Intel Core i7-8700K
AVX is used to help speed up calculations in multimedia, scientific and financial apps, as well as improving Linux RAID software performance.
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 F16C
✔Intel Core i5+8400
✔Intel Core i7-8700K
F16C is used to speed up tasks such as adjusting the contrast of an image or adjusting volume.
bits executed at a time
Unknown. Help us by suggesting a value. (Intel Core i5+8400)
Unknown.