Buy on Amazon
$820
In Stock
Availability
Availability
Availability
Availability
Key Differences
In short — Core i9-10940X 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 i9-10940X is 744 days newer than the cheaper Core i5-8400.
Advantages of Intel Core i9-10940X
- Performs up to 7% better in Starfield than Core i5-8400 - 61 vs 57 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 28 vs 6 threads
Advantages of Intel Core i5-8400
- Up to 83% cheaper than Core i9-10940X - $140.0 vs $820.0
- Up to 82% better value when playing Starfield than Core i9-10940X - $2.46 vs $13.44 per FPS
- Consumes up to 61% less energy than Intel Core i9-10940X - 65 vs 165 Watts
Starfield
Resolution
1920 x 1080
Game Graphics
Ultra
Core i9-10940X
Desktop • Oct 19th, 2019
FPS
61
100%
Value, $/FPS
$13.44/FPS
18.30357142857143%
Price, $
$820
17%
FPS Winner
Intel Core i9-10940X Desktop Processor 14 Cores up to 4.8GHz Unlocked LGA2066 X299 Series 165W, BX8069510940X
Buy for $820 on Amazon
In Stock
Updated 349959 minutes ago
Core i5-8400
Desktop • Oct 5th, 2017
FPS
57
93.44262295081968%
Value, $/FPS
$2.46/FPS
100%
Price, $
$140
100%
Value Winner
Intel Core i5-8400 Desktop Processor 6 Cores up to 4.0 GHz LGA 1151 300 Series 65W
Buy for $140 on Amazon
In Stock
Updated 349959 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i9-10940X
Desktop • Oct 19th, 2019
Core i5-8400
Desktop • Oct 5th, 2017
Geekbench 5 Benchmarks
Core i5-8400
Desktop • Oct 5th, 2017
Single-Core
1353
86.61971830985915%
Multi-Core
4748
44.089516203918656%
Intel Core i9-10940X | vs | Intel Core i5-8400 |
|---|---|---|
Oct 19th, 2019 | Release Date | Oct 5th, 2017 |
| Core i9 Extreme | Collection | Core i5 |
| Cascade Lake | Codename | Coffee Lake |
| Intel Socket 2066 | Socket | Intel Socket 1151 |
Desktop | Segment | Desktop |
14 | Cores | 6 |
28 | Threads | 6 |
3.3 GHz | Base Clock Speed | 2.8 GHz |
4.6 GHz | Turbo Clock Speed | 4.0 GHz |
| 165 W | TDP | 65 W |
| 14 nm | Process Size | 14 nm |
33.0x | Multiplier | 28.0x |
| None | Integrated Graphics | None |
Yes | Overclockable | No |
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