Intel Core i7 7700K vs Intel Core i5 9400

VS

We compared two desktop CPUs: Intel Core i7 7700K with 4 cores 4.2GHz and Intel Core i5 9400 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 7700K 's Advantages

Better graphics card performance

Higher base frequency (4.2GHz vs 2.9GHz)

Intel Core i5 9400 's Advantages

Released 2 years late

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

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

Larger L3 cache size (9MB vs 8MB)

Lower TDP (65W vs 91W)

Score

Benchmark

Geekbench 6 Single Core

Intel Core i7 7700K +41%

1557

Intel Core i5 9400

1102

Geekbench 6 Multi Core

Intel Core i7 7700K +127%

5260

Intel Core i5 9400

2309

Blender

Intel Core i7 7700K +20%

102

Intel Core i5 9400

85

Geekbench 5 Single Core

Intel Core i7 7700K +7%

1129

Intel Core i5 9400

1048

Geekbench 5 Multi Core

Intel Core i7 7700K +2%

4705

Intel Core i5 9400

4599

Passmark CPU Single Core

Intel Core i7 7700K +10%

2712

Intel Core i5 9400

2457

Passmark CPU Multi Core

Intel Core i7 7700K +1%

9594

Intel Core i5 9400

9431

Intel Core i7 7700K

VS

Intel Core i5 9400

General Parameters

Jan 2017

Release Date

Jan 2019

Intel

Manufacturer

Intel

Desktop

Type

Desktop

x86-64

Instruction Set

x86-64

Kaby Lake

Core Architecture

Coffee Lake

i7-7700K

Processor Number

i5-9400

LGA-1151

Socket

LGA-1151

HD Graphics 630

Integrated Graphics

UHD Graphics 630

Package

14 nm

Manufacturing Process

14 nm

LGA-1151

Socket

LGA-1151

91 W

Power Consumption

65 W

100 °C

Peak Operating Temperature

100 °C

CPU Performance

4

Performance Cores

6

8

Performance Core Threads

6

4.2 GHz

Performance Core Base Frequency

2.9 GHz

4.5 GHz

Performance Core Turbo Frequency

4.1 GHz

4

Total Core Count

6

8

Total Thread Count

6

42 MHz

Bus Frequency

100 MHz

100x

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

9 MB shared

Yes

Unlocked Multiplier

No

Memory Parameters

DDR4-2400, DDR3L-1600

Memory Types

DDR4-2666

64 GB

Max Memory Size

128 GB

2

Max Memory Channels

2

35.76 GB/s

Max Memory Bandwidth

41.6 GB/s

No

ECC Memory Support

No

Graphics Card Parameters

true

Integrated Graphics

true

350 MHz

GPU Base Frequency

350 MHz

1150 MHz

GPU Max Dynamic Frequency

1050 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

0.44 TFLOPS

Graphics Performance

0.38 TFLOPS

Miscellaneous

Intel Core i7 7700K

Official Website

Intel Core i5 9400

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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