Intel Core i7 6700K vs Intel Core i5 10400

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We compared two desktop CPUs: Intel Core i7 6700K with 4 cores 4.0GHz and Intel Core i5 10400 with 6 cores 2.9GHz . You will find out which processor performs better in benchmark tests, key specifications, power consumption and more.

Main Differences

Intel Core i7 6700K 's Advantages

Higher base frequency (4.0GHz vs 2.9GHz)

Intel Core i5 10400 's Advantages

Released 4 years and 9 months late

Higher specification of memory (DDR4-2666 vs DDR4-2133)

Larger memory bandwidth (41.6GB/s vs 34.1GB/s)

Larger L3 cache size (12MB vs 8MB)

Lower TDP (65W vs 91W)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i7 6700K

1136

Intel Core i5 10400

1130

Cinebench R23 Multi Core

Intel Core i7 6700K

5661

Intel Core i5 10400 +34%

7598

Geekbench 6 Single Core

Intel Core i7 6700K +10%

1544

Intel Core i5 10400

1401

Geekbench 6 Multi Core

Intel Core i7 6700K

5265

Intel Core i5 10400 +12%

5919

Blender

Intel Core i7 6700K

96

Intel Core i5 10400 +17%

113

Geekbench 5 Single Core

Intel Core i7 6700K

1087

Intel Core i5 10400 +5%

1149

Geekbench 5 Multi Core

Intel Core i7 6700K

4271

Intel Core i5 10400 +35%

5766

Passmark CPU Single Core

Intel Core i7 6700K

2510

Intel Core i5 10400 +2%

2569

Passmark CPU Multi Core

Intel Core i7 6700K

8940

Intel Core i5 10400 +36%

12194

Intel Core i7 6700K

VS

Intel Core i5 10400

General Parameters

Aug 2015

Release Date

May 2020

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Skylake

Core Architecture

Comet Lake

i7-6700K

Processor Number

i5-10400

LGA-1151

Socket

LGA-1200

HD Graphics 530

Integrated Graphics

UHD Graphics 630

Package

1.75 billions

Transistor Count

-

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1200

91 W

Power Consumption

65 W

-

Peak Operating Temperature

100 °C

CPU Performance

4

Performance Cores

6

8

Performance Core Threads

12

4.0 GHz

Performance Core Base Frequency

2.9 GHz

4.2 GHz

Performance Core Turbo Frequency

4.3 GHz

4

Total Core Count

6

8

Total Thread Count

12

100 MHz

Bus Frequency

100 MHz

40x

Multiplier

29x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

8 MB shared

L3 Cache

12 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2133, DDR3L-1600

Memory Types

DDR4-2666

64 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

34.1 GB/s

Max Memory Bandwidth

41.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

-

GPU Base Frequency

350 MHz

1150 MHz

GPU Max Dynamic Frequency

1100 MHz

-

Shader Units

192

-

Texture Units

24

-

Raster Operation Units

3

-

Execution Units

24

-

Power Consumption

15 W

-

Max Resolution

4096x2304 - 60 Hz

-

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i7 6700K

Official Website

Intel Core i5 10400

3.0

PCIe Version

3.0

16

PCIe Lanes

16

SSE4.1, SSE4.2, AVX-2

Extended Instruction Set

-

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