Intel Core i5-7600K vs Intel Core i5-7640X

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CPU comparison with benchmarks


Intel Core i5-7600K CPU1 vs CPU2 Intel Core i5-7640X
Intel Core i5-7600K Intel Core i5-7640X

CPU comparison

In this CPU comparison, we compare the Intel Core i5-7600K and the Intel Core i5-7640X and use benchmarks to check which processor is faster.

We compare the Intel Core i5-7600K 4 core processor released in Q1/2017 with the Intel Core i5-7640X which has 4 CPU cores and was introduced in Q2/2017.
Intel Core i5 (328) Family Intel Core i5 (328)
Intel Core i 7000 (17) CPU group Intel Core i 7000X (9)
7 Generation 7
Kaby Lake S Architecture Skylake X
Desktop / Server Segment Desktop / Server
Intel Core i5-6600K Predecessor --
Intel Core i5-8600K Successor --

CPU Cores and Base Frequency

The Intel Core i5-7600K is a 4 core processor with a clock frequency of 3.80 GHz (4.20 GHz). The processor can compute 4 threads at the same time. The Intel Core i5-7640X clocks with 4.00 GHz (4.20 GHz), has 4 CPU cores and can calculate 8 threads in parallel.

Intel Core i5-7600K Characteristic Intel Core i5-7640X
4 Cores 4
4 Threads 8
normal Core architecture normal
No Hyperthreading Yes
Yes Overclocking ? Yes
3.80 GHz Frequency 4.00 GHz
4.20 GHz Turbo Frequency (1 Core) 4.20 GHz
4.20 GHz Turbo Frequency (All Cores) 4.20 GHz

Artificial Intelligence and Machine Learning

Processors with the support of artificial intelligence (AI) and machine learning (ML) can process many calculations, especially audio, image and video processing, much faster than classic processors. Algorithms for ML improve their performance the more data they have collected via software. ML tasks can be processed up to 10,000 times faster than with a classic processor.

Intel Core i5-7600K Characteristic Intel Core i5-7640X
-- AI hardware --
-- AI specifications --

Internal Graphics

Graphics (iGPU) integrated into the processor not only enable image output without having to rely on a dedicated graphics solution, but can also efficiently accelerate video playback.

Intel HD Graphics 630 GPU no iGPU
0.35 GHz GPU frequency --
1.15 GHz GPU (Turbo) --
9.5 GPU Generation --
14 nm Technology
3 Max. displays
24 Compute units --
192 Shader --
No Hardware Raytracing No
No Frame Generation No
64 GB Max. GPU Memory --
12 DirectX Version --

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.

Intel HD Graphics 630 GPU no iGPU
Decode / Encode Codec h265 / HEVC (8 bit) No
Decode / Encode Codec h265 / HEVC (10 bit) No
Decode / Encode Codec h264 No
Decode / Encode Codec VP9 No
Decode / Encode Codec VP8 No
No Codec AV1 No
Decode / Encode Codec AVC No
Decode Codec VC-1 No
Decode / Encode Codec JPEG No

Memory & PCIe

Up to 64 GB of memory in a maximum of 2 memory channels is supported by the Intel Core i5-7600K, while the Intel Core i5-7640X supports a maximum of 64 GB of memory with a maximum memory bandwidth of 42.7 GB/s enabled.

Intel Core i5-7600K Characteristic Intel Core i5-7640X
DDR4-2400 Memory DDR4-2666
64 GB Max. Memory 64 GB
2 (Dual Channel) Memory channels 2 (Dual Channel)
38.4 GB/s Max. Bandwidth 42.7 GB/s
No ECC No
-- L2 Cache --
6.00 MB L3 Cache 6.00 MB
3.0 PCIe version 3.0
16 PCIe lanes 16
15.8 GB/s PCIe Bandwidth 15.8 GB/s

Thermal Management

The Intel Core i5-7600K has a TDP of 91 W. The TDP of the Intel Core i5-7640X is 112 W. System integrators use the TDP of the processor as a guide when dimensioning the cooling solution.

Intel Core i5-7600K Characteristic Intel Core i5-7640X
91 W TDP (PL1 / PBP) 112 W
-- TDP (PL2) --
-- TDP up --
-- TDP down --
-- Tjunction max. --

Technical details

The Intel Core i5-7600K has 6.00 MB cache and is manufactured in 14 nm. The cache of Intel Core i5-7640X is at 6.00 MB. The processor is manufactured in 14 nm.

Intel Core i5-7600K Characteristic Intel Core i5-7640X
14 nm Technology 14 nm
Monolithic Chip design Monolithic
x86-64 (64 bit) Instruction set (ISA) x86-64 (64 bit)
SSE4.1, SSE4.2, AVX2 ISA extensions SSE4.1, SSE4.2, AVX2, AVX-512
LGA 1151 Socket LGA 2066
VT-x, VT-x EPT, VT-d Virtualization VT-x, VT-x EPT, VT-d
Yes AES-NI Yes
Windows 10, Linux Operating systems Windows 10, Linux
Q1/2017 Release date Q2/2017
270 $ Release price 300 $
show more data show more data


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Average performance in benchmarks

⌀ Single core performance in 4 CPU benchmarks
⌀ Multi core performance in 5 CPU benchmarks

Geekbench 5, 64bit (Single-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
1174 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
1153 (98%)

Geekbench 5, 64bit (Multi-Core)

Geekbench 5 is a cross plattform benchmark that heavily uses the systems memory. A fast memory will push the result a lot. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
3855 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
3644 (95%)

Geekbench 6 (Single-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The single-core benchmark only evaluates the performance of the fastest CPU core, the number of CPU cores in a processor is irrelevant here.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
1420 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
1411 (99%)

Geekbench 6 (Multi-Core)

Geekbench 6 is a benchmark for modern computers, notebooks and smartphones. What is new is an optimized utilization of newer CPU architectures, e.g. based on the big.LITTLE concept and combining CPU cores of different sizes. The multi-core benchmark evaluates the performance of all of the processor's CPU cores. Virtual thread improvements such as AMD SMT or Intel's Hyper-Threading have a positive impact on the benchmark result.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
4278 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
3982 (93%)

Cinebench R20 (Single-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
433 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
412 (95%)

Cinebench R20 (Multi-Core)

Cinebench R20 is the successor of Cinebench R15 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
1589 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
1409 (89%)

Estimated results for PassMark CPU Mark

Some of the CPUs listed below have been benchmarked by CPU-monkey. However the majority of CPUs have not been tested and the results have been estimated by a CPU-monkey’s secret proprietary formula. As such they do not accurately reflect the actual Passmark CPU mark values and are not endorsed by PassMark Software Pty Ltd.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
6862 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
6796 (99%)

Cinebench R15 (Single-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The single-core test only uses one CPU core, the amount of cores or hyperthreading ability doesn't count.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
179 (99%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
180 (100%)

Cinebench R15 (Multi-Core)

Cinebench R15 is the successor of Cinebench 11.5 and is also based on the Cinema 4 Suite. Cinema 4 is a worldwide used software to create 3D forms. The multi-core test involves all CPU cores and taks a big advantage of hyperthreading.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
717 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
720 (100%)

iGPU - FP32 Performance (Single-precision GFLOPS)

The theoretical computing performance of the internal graphics unit of the processor with simple accuracy (32 bit) in GFLOPS. GFLOPS indicates how many billion floating point operations the iGPU can perform per second.
Intel Core i5-7600K Intel Core i5-7600K
Intel HD Graphics 630 @ 1.15 GHz
442 (100%)
Intel Core i5-7640X Intel Core i5-7640X
@ 0.00 GHz
0 (0%)

CPU-Z Benchmark 17 (Single-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 4.20 GHz
492 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.20 GHz
0 (0%)

CPU-Z Benchmark 17 (Multi-Core)

The CPU-Z benchmark measures a processor's performance by measuring the time it takes the system to complete all benchmark calculations. The faster the benchmark is completed, the higher the score.
Intel Core i5-7600K Intel Core i5-7600K
4C 4T @ 3.80 GHz
1794 (100%)
Intel Core i5-7640X Intel Core i5-7640X
4C 8T @ 4.00 GHz
0 (0%)

Devices using this processor

Intel Core i5-7600K Intel Core i5-7640X
Unknown Unknown

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