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Core i5-8400T vs Core i9-9900K

Core i5-8400T vs Core i9-9900K: game performance, price, value, and specification comparison. Select comparison game parameters.

vs
FPS Winner

Core i9-9900K

3.6 GHz | 8-core

Intel Core i9-9900K Logo
Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W

Buy for $385 on Amazon

In Stock

Updated 300 minutes ago

vs
FPS Winner

Core i9-9900K

3.6 GHz | 8-core

Intel Core i9-9900K Logo
Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W

Buy for $385 on Amazon

In Stock

Updated 300 minutes ago

Key Differences

In short — Core i9-9900K outperforms the cheaper Core i5-8400T on the selected game parameters. However, the worse performing Core i5-8400T is a better bang for your buck. The better performing Core i9-9900K is 200 days newer than the cheaper Core i5-8400T.

Advantages of Core i5-8400T

  • Up to 71% cheaper than Core i9-9900K - $113.37 vs $385.00
  • Up to 69% better value when playing Halo Infinite than Core i9-9900K - $0.72 vs $2.36 per FPS
  • Consumes up to 63% less energy than Intel Core i9-9900K - 35 vs 95 Watts

Advantages of Core i9-9900K

  • Performs up to 3% better in Halo Infinite than Core i5-8400T - 163 vs 158 FPS
  • Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400T - 16 vs 6 threads
  • Works without a dedicated GPU, while Intel Core i5-8400T doesn't have integrated graphics
Calculator background
This is a free version of Halo Infinite.
Halo Infinite

Halo Infinite

Resolution

1920 x 1080

Game Graphics

Ultra

Intel Core i5-8400T Logo
Core i5-8400T

Desktop • Apr 2nd, 2018


FPS

158

97%

Value, $/FPS

$0.72/FPS

100%

Price, $

$113.37

100%

Value Winner

Intel Core i9-9900K Logo
Core i9-9900K

Desktop • Oct 19th, 2018


FPS

163

100%

Value, $/FPS

$2.36/FPS

31%

Price, $

$385

29%

FPS Winner

Intel Core i9-9900K Desktop Processor 8 Cores up to 5.0 GHz Turbo Unlocked LGA1151 300 Series 95W

Buy for $385 on Amazon

In Stock

Updated 300 minutes ago

My Games

With selected game settings

Resolution

1920 x 1080

Game Graphics

Ultra

Intel Core i5-8400T Logo
Core i5-8400T

Desktop • Apr 2nd, 2018

Intel Core i9-9900K Logo
Core i9-9900K

Desktop • Oct 19th, 2018

Geekbench 5 Benchmarks

Intel Core i5-8400T Logo
Core i5-8400T

Desktop • Apr 2nd, 2018


Single-Core

1099

66%

Multi-Core

3884

49%

Intel Core i9-9900K Logo
Core i9-9900K

Desktop • Oct 19th, 2018


Single-Core

1668

100%

Multi-Core

7960

100%

Intel Core i5-8400T Logo

Core i5-8400T

vs
Intel Core i9-9900K Logo

Core i9-9900K

Apr 2nd, 2018
Oct 19th, 2018
Core i5Core i9
Coffee LakeCoffee Lake
Intel Socket 1151Intel Socket 1151
Desktop
Desktop
6
8
6
16
1.7 GHz
3.6 GHz
3.3 GHz
5.0 GHz
35 W
95 W
14 nm14 nm
17.0x
36.0x
None
UHD Graphics 630
No
Yes

PCs Using Core i5-8400T or Core i9-9900K

With selected game settings

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