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$130.73
In Stock
Availability
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Key Differences
In short — Core i9-9940X outperforms the cheaper Core i5-8400 on the selected game parameters. However, the worse performing Core i5-8400 is a better bang for your buck. The better performing Core i9-9940X is 379 days newer than the cheaper Core i5-8400.
Advantages of Intel Core i5-8400
- Up to 87% cheaper than Core i9-9940X - $130.73 vs $970.7
- Up to 86% better value when playing Starfield than Core i9-9940X - $2.29 vs $16.45 per FPS
- Consumes up to 61% less energy than Intel Core i9-9940X - 65 vs 165 Watts
Advantages of Intel Core i9-9940X
- Performs up to 4% better in Starfield than Core i5-8400 - 59 vs 57 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 28 vs 6 threads
Starfield
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-8400
Desktop • Oct 5th, 2017
FPS
57
96%
Value, $/FPS
$2.29/FPS
100%
Price, $
$130.73
100%
Value Winner
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W
Buy for $130.73 on Amazon
In Stock
Updated 14602 minutes ago
Intel Core i9-9940X X-Series Processor 14 Cores up to 4.4GHz Turbo Unlocked LGA2066 X299 Series 165W Processors (999AC9)
Buy for $970.7 on Amazon
In Stock
Updated 14601 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i5-8400
Desktop • Oct 5th, 2017
Core i9-9940X
Desktop • Oct 19th, 2018
Geekbench 5 Benchmarks
Intel Core i5-8400 | vs | Intel Core i9-9940X |
|---|---|---|
| Oct 5th, 2017 | Release Date | Oct 19th, 2018 |
| Core i5 | Collection | Core i9 |
| Coffee Lake | Codename | Skylake |
| Intel Socket 1151 | Socket | Intel Socket 2066 |
Desktop | Segment | Desktop |
| 6 | Cores | 14 |
| 6 | Threads | 28 |
| 2.8 GHz | Base Clock Speed | 3.3 GHz |
| 4.0 GHz | Turbo Clock Speed | 4.4 GHz |
65 W | TDP | 165 W |
| 14 nm | Process Size | 14 nm |
| 28.0x | Multiplier | 33.0x |
| None | Integrated Graphics | None |
| No | Overclockable | Yes |
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