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Core i7-11700K vs Core i5-8400

Core i7-11700K vs Core i5-8400: game performance, price, value, and specification comparison. Select comparison game parameters.

FPS Winner

Intel Core i7-11700K

3.6 GHz | 8-core

Intel Core i7-11700K Logo
Intel® Core™ i7-11700K Desktop Processor 8 Cores up to 5.0 GHz Unlocked LGA1200 (Intel 500 Series & Select 400 Series Chipset) 125W

Buy for $258 on Amazon

In Stock

Updated 218 minutes ago

vs

Intel Core i5-8400

2.8 GHz | 6-core

Intel Core i5-8400 Logo
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W

Buy for $130.73 on Amazon

In Stock

Updated 218 minutes ago

FPS Winner

Intel Core i7-11700K

3.6 GHz | 8-core

Intel Core i7-11700K Logo
Intel® Core™ i7-11700K Desktop Processor 8 Cores up to 5.0 GHz Unlocked LGA1200 (Intel 500 Series & Select 400 Series Chipset) 125W

Buy for $258 on Amazon

In Stock

Updated 218 minutes ago

vs

Intel Core i5-8400

2.8 GHz | 6-core

Intel Core i5-8400 Logo
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W

Buy for $130.73 on Amazon

In Stock

Updated 218 minutes ago

Key Differences

In short — Core i7-11700K outperforms the cheaper Core i5-8400 on the selected game parameters. However, the worse performing Core i5-8400 is a better bang for your buck. The better performing Core i7-11700K is 1258 days newer than the cheaper Core i5-8400.

Advantages of Intel Core i7-11700K

  • Performs up to 22% better in Cyberpunk 2077 than Core i5-8400 - 93 vs 76 FPS
  • Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 16 vs 6 threads
  • Works without a dedicated GPU, while Intel Core i5-8400 doesn't have integrated graphics

Advantages of Intel Core i5-8400

  • Up to 49% cheaper than Core i7-11700K - $130.73 vs $258.0
  • Up to 38% better value when playing Cyberpunk 2077 than Core i7-11700K - $1.72 vs $2.77 per FPS
  • Consumes up to 48% less energy than Intel Core i7-11700K - 65 vs 125 Watts
This is a free version of Cyberpunk 2077.
Cyberpunk 2077

Cyberpunk 2077

Resolution

1920 x 1080

Game Graphics

RT Overdrive

Intel Core i7-11700K Logo
Core i7-11700K

Desktop • Mar 16th, 2021


FPS

93

100%

Value, $/FPS

$2.77/FPS

62%

Price, $

$258

50%

FPS Winner

Intel® Core™ i7-11700K Desktop Processor 8 Cores up to 5.0 GHz Unlocked LGA1200 (Intel 500 Series & Select 400 Series Chipset) 125W

Buy for $258 on Amazon

In Stock

Updated 218 minutes ago

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017


FPS

76

81%

Value, $/FPS

$1.72/FPS

100%

Price, $

$130.73

100%

Value Winner

Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W

Buy for $130.73 on Amazon

In Stock

Updated 218 minutes ago

TOP 5 Games

Resolution

1920 x 1080

Game Graphics

RT Overdrive

Intel Core i7-11700K Logo
Core i7-11700K

Desktop • Mar 16th, 2021

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017

Geekbench 5 Benchmarks

Intel Core i7-11700K Logo
Core i7-11700K

Desktop • Mar 16th, 2021


Single-Core

2219

100%

Multi-Core

9806

100%

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017


Single-Core

1353

60%

Multi-Core

4748

48%

Intel Core i7-11700K Logo

Intel Core i7-11700K

vs
Intel Core i5-8400 Logo

Intel Core i5-8400

Mar 16th, 2021
Release DateOct 5th, 2017
Core i7CollectionCore i5
Rocket LakeCodenameCoffee Lake
Intel Socket 1200SocketIntel Socket 1151
Desktop
Segment
Desktop
8
Cores6
16
Threads6
3.6 GHz
Base Clock Speed2.8 GHz
5.0 GHz
Turbo Clock Speed4.0 GHz
125 WTDP
65 W
14 nmProcess Size14 nm
36.0x
Multiplier28.0x
UHD Graphics 750
Integrated GraphicsNone
Yes
OverclockableNo

Builds Using Core i7-11700K or Core i5-8400

Cyberpunk 2077, 1920 x 1080, RT Overdrive

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