Key Differences
In short — Core i5-8400 outperforms Core i7-640M on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i5-8400 is 2566 days newer than Core i7-640M.
Advantages of Intel Core i7-640M
- Consumes up to 46% less energy than Intel Core i5-8400 - 35 vs 65 Watts
- Works without a dedicated GPU, while Intel Core i5-8400 doesn't have integrated graphics
Advantages of Intel Core i5-8400
- Performs up to 4% better in Uncharted: Legacy of Thieves than Core i7-640M - 163 vs 156 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i7-640M - 6 vs 4 threads
Uncharted: Legacy of Thieves
Resolution
1920 x 1080
Game Graphics
Ultra
Desktop • Oct 5th, 2017
FPS
163
100%
Value, $/FPS
$0.8/FPS
100%
Price, $
$130.73
100%
FPS and Value Winner
Buy for $130.73 on Amazon
In Stock
Updated 2432 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Mobile • Sep 26th, 2010
Desktop • Oct 5th, 2017
Geekbench 5 Benchmarks
Intel Core i7-640M | vs | Intel Core i5-8400 |
---|---|---|
Sep 26th, 2010 | Release Date | Oct 5th, 2017 |
Core i7 | Collection | Core i5 |
Arrandale | Codename | Coffee Lake |
Intel Socket G1 | Socket | Intel Socket 1151 |
Mobile | Segment | Desktop |
2 | Cores | 6 |
4 | Threads | 6 |
2.8 GHz | Base Clock Speed | 2.8 GHz |
3.5 GHz | Turbo Clock Speed | 4.0 GHz |
35 W | TDP | 65 W |
32 nm | Process Size | 14 nm |
21.0x | Multiplier | 28.0x |
HD Graphics (Ironlake) | Integrated Graphics | None |
No | Overclockable | No |