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Core i5-8400 vs Core i9-7900X

Core i5-8400 vs Core i9-7900X: 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 93.33 on Amazon

In Stock

Updated 59 minutes ago

vs
FPS Winner

Intel Core i9-7900X

3.3 GHz | 10-core

Intel Core i9-7900X Logo
Intel Core i9-7900X X-Series Processor 10 Cores up to 4.3 GHz Turbo Unlocked LGA2066 X299 Series 140W

Buy for 263.77 on Amazon

In Stock

Updated 58 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 93.33 on Amazon

In Stock

Updated 59 minutes ago

vs
FPS Winner

Intel Core i9-7900X

3.3 GHz | 10-core

Intel Core i9-7900X Logo
Intel Core i9-7900X X-Series Processor 10 Cores up to 4.3 GHz Turbo Unlocked LGA2066 X299 Series 140W

Buy for 263.77 on Amazon

In Stock

Updated 58 minutes ago

Key Differences

In short — Core i9-7900X 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 i9-7900X is 101 days older than the cheaper Core i5-8400.

Advantages of Intel Core i5-8400

  • Up to 65% cheaper than Core i9-7900X - $84.08 vs $237.63
  • Consumes up to 54% less energy than Intel Core i9-7900X - 65 vs 140 Watts

Advantages of Intel Core i9-7900X

  • Performs up to 0% better in Rocket League than Core i5-8400 - 717 vs 714 FPS
  • Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 20 vs 6 threads
This is a free version of Rocket League.
Rocket League

Rocket League

Resolution

1920 x 1080

Game Graphics

High Quality

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017


FPS

714

99.581589958159%

Value, €/FPS

Price, €

€93.33

100%

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

Buy for 93.33 on Amazon

In Stock

Updated 59 minutes ago

Intel Core i9-7900X Logo
Core i9-7900X

Desktop • Jun 26th, 2017


FPS

717

100%

Value, €/FPS

Price, €

€263.77

35%

FPS Winner

Intel Core i9-7900X X-Series Processor 10 Cores up to 4.3 GHz Turbo Unlocked LGA2066 X299 Series 140W

Buy for 263.77 on Amazon

In Stock

Updated 58 minutes ago

TOP 5 Games

Resolution

1920 x 1080

Game Graphics

High Quality

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017

Intel Core i9-7900X Logo
Core i9-7900X

Desktop • Jun 26th, 2017

Geekbench 5 Benchmarks

Intel Core i5-8400 Logo
Core i5-8400

Desktop • Oct 5th, 2017


Single-Core

1353

95.14767932489451%

Multi-Core

4748

54.07129028584444%

Intel Core i9-7900X Logo
Core i9-7900X

Desktop • Jun 26th, 2017


Single-Core

1422

100%

Multi-Core

8781

100%

Intel Core i5-8400

vs

Intel Core i9-7900X

Oct 5th, 2017
Release DateJun 26th, 2017
Core i5CollectionCore i9
Coffee LakeCodenameSkylake-E/EP
Intel Socket 1151SocketIntel Socket 2066
Desktop
Segment
Desktop
6Cores
10
6Threads
20
2.8 GHzBase Clock Speed
3.3 GHz
4.0 GHzTurbo Clock Speed
4.3 GHz
65 W
TDP140 W
14 nmProcess Size14 nm
28.0xMultiplier
33.0x
NoneIntegrated GraphicsNone
NoOverclockable
Yes

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