Intel Core i5 8600K vs Intel Core i5 7640X

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We compared two desktop CPUs: Intel Core i5 8600K with 6 cores 3.6GHz and Intel Core i5 7640X with 4 cores 4.0GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i5 8600K 's Advantages

Integrated graphics card

Larger L3 cache size (9MB vs 6MB)

Lower TDP (95W vs 112W)

Intel Core i5 7640X 's Advantages

Larger memory bandwidth (42.7GB/s vs 41.6GB/s)

Higher base frequency (4.0GHz vs 3.6GHz)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i5 8600K +16%

1649

Intel Core i5 7640X

1419

Geekbench 6 Multi Core

Intel Core i5 8600K +62%

6050

Intel Core i5 7640X

3726

Geekbench 5 Single Core

Intel Core i5 8600K

1163

Intel Core i5 7640X +6%

1237

Geekbench 5 Multi Core

Intel Core i5 8600K +26%

5367

Intel Core i5 7640X

4230

Passmark CPU Single Core

Intel Core i5 8600K +3%

2603

Intel Core i5 7640X

2505

Passmark CPU Multi Core

Intel Core i5 8600K +51%

10201

Intel Core i5 7640X

6735

Intel Core i5 8600K

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Intel Core i5 7640X

General Parameters

Oct 2017

Release Date

May 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Kaby Lake

i5-8600K

Processor Number

i5-7640X

LGA-1151

Socket

LGA-2066

UHD Graphics 630

Integrated Graphics

N/A

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-2066

95 W

Power Consumption

112 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

6

Performance Cores

4

6

Performance Core Threads

4

3.6 GHz

Performance Core Base Frequency

4.0 GHz

4.3 GHz

Performance Core Turbo Frequency

4.2 GHz

6

Total Core Count

4

6

Total Thread Count

4

100 MHz

Bus Frequency

-

36x

Multiplier

39x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

9 MB shared

L3 Cache

6 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2666

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

42.7 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

-

350 MHz

GPU Base Frequency

-

1150 MHz

GPU Max Dynamic Frequency

-

192

Shader Units

-

24

Texture Units

-

3

Raster Operation Units

-

24

Execution Units

-

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.38 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i5 8600K

Official Website

Intel Core i5 7640X

3.0

PCIe Version

3.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

SSE4.1, SSE4.2, AVX-2

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