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Key Differences
In short — Core i9-9940X outperforms Core i5-9400 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i9-9940X and Core i5-9400 have been released at the same time.
Advantages of Intel Core i9-9940X
- Performs up to 2% better in Rust than Core i5-9400 - 197 vs 194 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-9400 - 28 vs 6 threads
Advantages of Intel Core i5-9400
- Consumes up to 61% less energy than Intel Core i9-9940X - 65 vs 165 Watts
- Works without a dedicated GPU, while Intel Core i9-9940X doesn't have integrated graphics
Rust
Resolution
1920 x 1080
Game Graphics
High
Core i5-9400
Desktop • Oct 19th, 2018
FPS
194
98%
Value, £/FPS
£0.97/FPS
100%
Price, £
£188.88
100%
Value Winner
Processor core i5 lga 1151 intel bx80684i59400 hexa core i5-9400
Buy for £188.88 on Amazon
In Stock
Updated 16331 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
High
Core i9-9940X
Desktop • Oct 19th, 2018
Core i5-9400
Desktop • Oct 19th, 2018
Geekbench 5 Benchmarks
Intel Core i9-9940X | vs | Intel Core i5-9400 |
|---|---|---|
| Oct 19th, 2018 | Release Date | Oct 19th, 2018 |
| Core i9 | Collection | Core i5 |
| Skylake | 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 | 2.9 GHz |
4.4 GHz | Turbo Clock Speed | 4.1 GHz |
| 165 W | TDP | 65 W |
| 14 nm | Process Size | 14 nm |
33.0x | Multiplier | 29.0x |
| None | Integrated Graphics | UHD 630 |
Yes | Overclockable | No |
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