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Core i5-8400 vs Core i9-12900K

Core i5-8400 vs Core i9-12900K: game performance, price, value, and specification comparison. Select comparison game parameters.

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 60.58 on Amazon

In Stock

Updated 74635 minutes ago

vs
FPS Winner

Intel Core i9-12900K

3.2 GHz | 16-core

Intel Core i9-12900K Logo
Intel Core i9-12900K Gaming Desktop Processor with Integrated Graphics and 16 (8P+8E) Cores up to 5.2 GHz Unlocked LGA1700 600 Series Chipset 125W

Buy for 242.55 on Amazon

In Stock

Updated 74634 minutes ago

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 60.58 on Amazon

In Stock

Updated 74635 minutes ago

vs
FPS Winner

Intel Core i9-12900K

3.2 GHz | 16-core

Intel Core i9-12900K Logo
Intel Core i9-12900K Gaming Desktop Processor with Integrated Graphics and 16 (8P+8E) Cores up to 5.2 GHz Unlocked LGA1700 600 Series Chipset 125W

Buy for 242.55 on Amazon

In Stock

Updated 74634 minutes ago

Key Differences

In short — Core i9-12900K outperforms the cheaper Core i5-8400 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i9-12900K is 1491 days newer than the cheaper Core i5-8400.

Advantages of Intel Core i5-8400

  • Up to 75% cheaper than Core i9-12900K - $54.58 vs $218.51
  • Consumes up to 48% less energy than Intel Core i9-12900K - 65 vs 125 Watts

Advantages of Intel Core i9-12900K

  • Performs up to 48% better in Assassin's Creed Mirage than Core i5-8400 - 147 vs 99 FPS
  • Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 24 vs 6 threads
  • Works without a dedicated GPU, while Intel Core i5-8400 doesn't have integrated graphics
This is a free version of Assassin's Creed Mirage.
Assassin's Creed Mirage

Assassin's Creed Mirage

Resolution

1920 x 1080

Game Graphics

Ultra High

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017


FPS

99

67.3469387755102%

Value, €/FPS

Price, €

€60.58

100%

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

Buy for 60.58 on Amazon

In Stock

Updated 74635 minutes ago

Intel Core i9-12900K Logo
Core i9-12900K

Desktop • Nov 4th, 2021


FPS

147

100%

Value, €/FPS

Price, €

€242.55

24%

FPS Winner

Intel Core i9-12900K Gaming Desktop Processor with Integrated Graphics and 16 (8P+8E) Cores up to 5.2 GHz Unlocked LGA1700 600 Series Chipset 125W

Buy for 242.55 on Amazon

In Stock

Updated 74634 minutes ago

TOP 5 Games

Resolution

1920 x 1080

Game Graphics

Ultra High

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017

Intel Core i9-12900K Logo
Core i9-12900K

Desktop • Nov 4th, 2021

Geekbench 5 Benchmarks

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017


Single-Core

1353

51.6412213740458%

Multi-Core

4748

30.74134023955973%

Intel Core i9-12900K Logo
Core i9-12900K

Desktop • Nov 4th, 2021


Single-Core

2620

100%

Multi-Core

15445

100%

Intel Core i5-8400 Logo

Intel Core i5-8400

vs
Intel Core i9-12900K Logo

Intel Core i9-12900K

Oct 5th, 2017Release Date
Nov 4th, 2021
Core i5CollectionCore i9
Coffee LakeCodenameAlder Lake
Intel Socket 1151SocketIntel Socket 1700
Desktop
Segment
Desktop
6Cores
16
6Threads
24
2.8 GHzBase Clock Speed
3.2 GHz
4.0 GHzTurbo Clock Speed
5.2 GHz
65 W
TDP125 W
14 nmProcess Size
10 nm
28.0xMultiplier
32.0x
NoneIntegrated Graphics
UHD Graphics 770
NoOverclockable
Yes

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