Intel Core i5 9400F vs Intel Core i7 6700K

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We compared two desktop CPUs: Intel Core i5 9400F with 6 cores 2.9GHz 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 9400F 's Advantages

Released 3 years and 5 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 (9MB vs 8MB)

Lower TDP (65W vs 91W)

Intel Core i7 6700K 's Advantages

Integrated graphics card

Higher base frequency (4.0GHz vs 2.9GHz)

Score

Benchmark

Cinebench R23 Single Core

Intel Core i5 9400F

1069

Intel Core i7 6700K +6%

1136

Cinebench R23 Multi Core

Intel Core i5 9400F +4%

5906

Intel Core i7 6700K

5661

Geekbench 6 Single Core

Intel Core i5 9400F

1396

Intel Core i7 6700K +10%

1544

Geekbench 6 Multi Core

Intel Core i5 9400F

5142

Intel Core i7 6700K +2%

5265

Blender

Intel Core i5 9400F +4%

100

Intel Core i7 6700K

96

Geekbench 5 Single Core

Intel Core i5 9400F

1067

Intel Core i7 6700K +1%

1087

Geekbench 5 Multi Core

Intel Core i5 9400F +12%

4806

Intel Core i7 6700K

4271

Passmark CPU Single Core

Intel Core i5 9400F

2453

Intel Core i7 6700K +2%

2510

Passmark CPU Multi Core

Intel Core i5 9400F +6%

9511

Intel Core i7 6700K

8940

Intel Core i5 9400F

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Intel Core i7 6700K

General Parameters

Jan 2019

Release Date

Aug 2015

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Coffee Lake

Core Architecture

Skylake

i5-9400F

Processor Number

i7-6700K

LGA-1151

Socket

LGA-1151

N/A

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

6

Performance Cores

4

6

Performance Core Threads

8

2.9 GHz

Performance Core Base Frequency

4.0 GHz

4.1 GHz

Performance Core Turbo Frequency

4.2 GHz

6

Total Core Count

4

6

Total Thread Count

8

100 MHz

Bus Frequency

100 MHz

29x

Multiplier

40x

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

8 MB shared

No

Unlocked Multiplier

Yes

Memory Parameters

DDR4-2666

Memory Types

DDR4-2133, DDR3L-1600

128 GB

Max Memory Size

64 GB

2

Max Memory Channels

2

41.6 GB/s

Max Memory Bandwidth

34.1 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

-

Integrated Graphics

true

-

GPU Max Dynamic Frequency

1150 MHz

Miscellaneous

Intel Core i5 9400F

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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