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Core i7-840QM vs Core i5-6400

Core i7-840QM vs Core i5-6400: game performance, price, value, and specification comparison. Select comparison game parameters.

Key Differences

In short — Core i5-6400 outperforms Core i7-840QM on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i5-6400 is 1838 days newer than Core i7-840QM.

Advantages of Intel Core i7-840QM

  • Consumes up to 31% less energy than Intel Core i5-6400 - 45 vs 65 Watts
  • Can execute more multi-threaded tasks simultaneously than Intel Core i5-6400 - 8 vs 4 threads

Advantages of Intel Core i5-6400

  • Performs up to 8% better in F1 22 than Core i7-840QM - 269 vs 250 FPS
  • Works without a dedicated GPU, while Intel Core i7-840QM doesn't have integrated graphics
This is a free version of F1 22.
F1 22

F1 22

Resolution

1920 x 1080

Game Graphics

Ultra High

Intel Core i7-840QM Logo
Core i7-840QM

Mobile • Jun 20th, 2010


FPS

250

92%

Value, $/FPS

Price, $

Intel Core i5-6400 Logo
Core i5-6400

Desktop • Jul 2nd, 2015


FPS

269

100%

Value, $/FPS

$0.29/FPS

100%

Price, $

$79

100%

FPS and Value Winner

Intel Boxed Core I5-6400 FC-LGA14C 2.70 Ghz 6 M Processor Cache 4 LGA 1151 BX80662I56400

Buy for $79 on Amazon

In Stock

Updated 12234 minutes ago

TOP 5 Games

Resolution

1920 x 1080

Game Graphics

Ultra High

Intel Core i7-840QM Logo
Core i7-840QM

Mobile • Jun 20th, 2010

Intel Core i5-6400 Logo
Core i5-6400

Desktop • Jul 2nd, 2015

Geekbench 5 Benchmarks

Intel Core i7-840QM Logo
Core i7-840QM

Mobile • Jun 20th, 2010


Single-Core

394

35%

Multi-Core

916

30%

Intel Core i5-6400 Logo
Core i5-6400

Desktop • Jul 2nd, 2015


Single-Core

1111

100%

Multi-Core

3023

100%

Intel Core i7-840QM Logo

Intel Core i7-840QM

vs
Intel Core i5-6400 Logo

Intel Core i5-6400

Jun 20th, 2010Release Date
Jul 2nd, 2015
Core i7CollectionCore i5
ClarksfieldCodenameSkylake
Intel Socket G1SocketIntel Socket 1151
Mobile
Segment
Desktop
4Cores4
8
Threads4
1.9 GHzBase Clock Speed
2.7 GHz
3.2 GHzTurbo Clock Speed
3.3 GHz
45 W
TDP65 W
45 nmProcess Size
14 nm
14.0xMultiplier
27.0x
NoneIntegrated Graphics
HD Graphics 530
NoOverclockableNo

Builds Using Core i7-840QM or Core i5-6400

F1 22, 1920 x 1080, Ultra High

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