Intel Core i7 8700K vs Intel Core i7 7700K

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We compared two desktop CPUs: Intel Core i7 8700K with 6 cores 3.7GHz and Intel Core i7 7700K with 4 cores 4.2GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 8700K 's Advantages

Released 9 months late

Higher specification of memory (DDR4-2666 vs DDR4-2400)

Larger memory bandwidth (41.6GB/s vs 35.76GB/s)

Larger L3 cache size (12MB vs 8MB)

Intel Core i7 7700K 's Advantages

Better graphics card performance

Higher base frequency (4.2GHz vs 3.7GHz)

Lower TDP (91W vs 95W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 8700K

1214

Intel Core i7 7700K

1215

Cinebench R23 Multi Core

Intel Core i7 8700K +48%

8765

Intel Core i7 7700K

5904

Geekbench 6 Single Core

Intel Core i7 8700K

1475

Intel Core i7 7700K +5%

1557

Geekbench 6 Multi Core

Intel Core i7 8700K +20%

6339

Intel Core i7 7700K

5260

Blender

Intel Core i7 8700K +50%

153

Intel Core i7 7700K

102

Geekbench 5 Single Core

Intel Core i7 8700K +9%

1233

Intel Core i7 7700K

1129

Geekbench 5 Multi Core

Intel Core i7 8700K +40%

6632

Intel Core i7 7700K

4705

Passmark CPU Single Core

Intel Core i7 8700K +1%

2748

Intel Core i7 7700K

2712

Passmark CPU Multi Core

Intel Core i7 8700K +42%

13661

Intel Core i7 7700K

9594

Intel Core i7 8700K

VS

Intel Core i7 7700K

General Parameters

Oct 2017

Release Date

Jan 2017

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Kaby Lake

i7-8700K

Processor Number

i7-7700K

LGA-1151

Socket

LGA-1151

UHD Graphics 630

Integrated Graphics

HD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

95 W

Power Consumption

91 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

6

Performance Cores

4

12

Performance Core Threads

8

3.7 GHz

Performance Core Base Frequency

4.2 GHz

4.7 GHz

Performance Core Turbo Frequency

4.5 GHz

6

Total Core Count

4

12

Total Thread Count

8

100 MHz

Bus Frequency

42 MHz

37x

Multiplier

100x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

12 MB shared

L3 Cache

8 MB shared

Yes

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2400, DDR3L-1600

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

35.76 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

350 MHz

1200 MHz

GPU Max Dynamic Frequency

1150 MHz

192

Shader Units

192

24

Texture Units

24

3

Raster Operation Units

3

24

Execution Units

24

15 W

Power Consumption

15 W

4096x2304 - 60 Hz

Max Resolution

4096x2304 - 60 Hz

0.38 TFLOPS

Graphics Performance

0.44 TFLOPS

Miscellaneous

Intel Core i7 8700K

Official Website

Intel Core i7 7700K

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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