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Key Differences
In short — Core i5-11400 outperforms the more expensive Core i9-9940X on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i5-11400 is 879 days newer than the more expensive Core i9-9940X.
Advantages of Intel Core i9-9940X
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-11400 - 28 vs 12 threads
Advantages of Intel Core i5-11400
- Performs up to 6% better in Watch Dogs: Legion than Core i9-9940X - 151 vs 143 FPS
- Up to 91% cheaper than Core i9-9940X - $126.99 vs $1388.88
- 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
Watch Dogs: Legion
Resolution
1920 x 1080
Game Graphics
Ultra
Intel Core i9-9940X X-Series Processor 14 Cores up to 4.4GHz Turbo Unlocked LGA2066 X299 Series 165W Processors (999AC9)
Buy for $1,388.88 on Amazon
In Stock
Updated 16 minutes ago
Intel® Core™ i5-11400 Desktop Processor 2.6 GHz Cores up to 4.4 GHz LGA1200 (Intel® 500 Series & Select 400 Series Chipset) 65W
Buy for $126.99 on Amazon
In Stock
Updated 19 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra
Core i9-9940X
Desktop • Oct 19th, 2018
Core i5-11400
Desktop • Mar 16th, 2021
Geekbench 5 Benchmarks
Intel Core i9-9940X | vs | Intel Core i5-11400 |
|---|---|---|
| Oct 19th, 2018 | Release Date | Mar 16th, 2021 |
| Core i9 | Collection | Core i5 |
| Skylake | Codename | Rocket Lake |
| Intel Socket 2066 | Socket | Intel Socket 1200 |
Desktop | Segment | Desktop |
14 | Cores | 6 |
28 | Threads | 12 |
3.3 GHz | Base Clock Speed | 2.6 GHz |
| 4.4 GHz | Turbo Clock Speed | 4.4 GHz |
| 165 W | TDP | 65 W |
| 14 nm | Process Size | 14 nm |
33.0x | Multiplier | 26.0x |
| None | Integrated Graphics | UHD Graphics 730 |
Yes | Overclockable | No |
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