Intel Core i5 7400 vs Intel Core i7 6700K

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We compared two desktop CPUs: Intel Core i5 7400 with 4 cores 3.0GHz and Intel Core i7 6700K 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 7400 's Advantages

Released 1 years and 5 months late

Higher specification of memory (DDR4-2400 vs DDR4-2133)

Larger memory bandwidth (35.76GB/s vs 34.1GB/s)

Lower TDP (65W vs 91W)

Intel Core i7 6700K 's Advantages

Higher base frequency (4.0GHz vs 3.0GHz)

Larger L3 cache size (8MB vs 6MB)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 7400

937

Intel Core i7 6700K +21%

1136

Cinebench R23 Multi Core

Intel Core i5 7400

3382

Intel Core i7 6700K +67%

5661

Geekbench 6 Single Core

Intel Core i5 7400

1215

Intel Core i7 6700K +27%

1544

Geekbench 6 Multi Core

Intel Core i5 7400

3517

Intel Core i7 6700K +49%

5265

Blender

Intel Core i5 7400

48

Intel Core i7 6700K +100%

96

Geekbench 5 Single Core

Intel Core i5 7400

877

Intel Core i7 6700K +23%

1087

Geekbench 5 Multi Core

Intel Core i5 7400

3079

Intel Core i7 6700K +38%

4271

Passmark CPU Single Core

Intel Core i5 7400

2090

Intel Core i7 6700K +20%

2510

Passmark CPU Multi Core

Intel Core i5 7400

5491

Intel Core i7 6700K +62%

8940

Intel Core i5 7400

VS

Intel Core i7 6700K

General Parameters

Jan 2017

Release Date

Aug 2015

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Kaby Lake

Core Architecture

Skylake

i5-7400

Processor Number

i7-6700K

LGA-1151

Socket

LGA-1151

HD Graphics 630

Integrated Graphics

HD Graphics 530

Package

-

Transistor Count

1.75 billions

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

65 W

Power Consumption

91 W

100 °C

Peak Operating Temperature

-

CPU Performance

4

Performance Cores

4

Performance Core Threads

8

3.0 GHz

Performance Core Base Frequency

4.0 GHz

3.5 GHz

Performance Core Turbo Frequency

4.2 GHz

4

Total Core Count

4

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

30x

Multiplier

40x

64 K per core

L1 Cache

64 K per core

256 K per core

L2 Cache

256 K per core

6 MB shared

L3 Cache

8 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2400, DDR3L-1600

Memory Types

DDR4-2133, DDR3L-1600

64 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

35.76 GB/s

Max Memory Bandwidth

34.1 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

-

1000 MHz

GPU Max Dynamic Frequency

1150 MHz

192

Shader Units

-

24

Texture Units

-

3

Raster Operation Units

-

24

Execution Units

-

15 W

Power Consumption

-

4096x2304 - 60 Hz

Max Resolution

-

0.44 TFLOPS

Graphics Performance

-

Miscellaneous

Intel Core i5 7400

Official Website

Intel Core i7 6700K

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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