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Key Differences
In short — Core i9-7940X outperforms Core i5-8400H on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i9-7940X is 213 days older than Core i5-8400H.
Advantages of Intel Core i5-8400H
- Consumes up to 73% less energy than Intel Core i9-7940X - 45 vs 165 Watts
- Works without a dedicated GPU, while Intel Core i9-7940X doesn't have integrated graphics
Advantages of Intel Core i9-7940X
- Performs up to 1% better in Uncharted: Legacy of Thieves than Core i5-8400H - 164 vs 163 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400H - 28 vs 8 threads
Uncharted: Legacy of Thieves
Resolution
1920 x 1080
Game Graphics
Ultra
Core i9-7940X
Desktop • Sep 1st, 2017
FPS
164
100%
Value, $/FPS
$2.43/FPS
100%
Price, $
$397.83
100%
FPS and Value Winner
Intel Core i9-7940X X-Series Processor 14 Cores up to 4.3 GHz Turbo Unlocked LGA2066 X299 Series 165W
Buy for $397.83 on Amazon
In Stock
Updated 8349 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-8400H
Mobile • Apr 2nd, 2018
Core i9-7940X
Desktop • Sep 1st, 2017
Geekbench 5 Benchmarks
Intel Core i5-8400H | vs | Intel Core i9-7940X |
|---|---|---|
Apr 2nd, 2018 | Release Date | Sep 1st, 2017 |
| Core i5 | Collection | Core i9 |
| Coffee Lake | Codename | Skylake |
| Intel BGA 1440 | Socket | Intel Socket 2066 |
Mobile | Segment | Desktop |
| 4 | Cores | 14 |
| 8 | Threads | 28 |
| 2.5 GHz | Base Clock Speed | 3.1 GHz |
| 4.2 GHz | Turbo Clock Speed | 4.3 GHz |
45 W | TDP | 165 W |
| 14 nm | Process Size | 14 nm |
| 25.0x | Multiplier | 31.0x |
UHD 630 | Integrated Graphics | None |
| No | Overclockable | Yes |
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