Key Differences
In short — Core i9-12900K outperforms the cheaper Core i5-8400 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Core i9-12900K is 1491 days newer than the cheaper Core i5-8400.
Advantages of Intel Core i5-8400
- Up to 75% cheaper than Core i9-12900K - $54.58 vs $218.51
- Consumes up to 48% less energy than Intel Core i9-12900K - 65 vs 125 Watts
Advantages of Intel Core i9-12900K
- Performs up to 48% better in Assassin's Creed Mirage than Core i5-8400 - 147 vs 99 FPS
- Can execute more multi-threaded tasks simultaneously than Intel Core i5-8400 - 24 vs 6 threads
- Works without a dedicated GPU, while Intel Core i5-8400 doesn't have integrated graphics
Assassin's Creed Mirage
Resolution
1920 x 1080
Game Graphics
Ultra High
Buy for €60.58 on Amazon
In Stock
Updated 74635 minutes ago
Buy for €242.55 on Amazon
In Stock
Updated 74634 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Ultra High
Desktop • Oct 5th, 2017
Desktop • Nov 4th, 2021
Geekbench 5 Benchmarks
Desktop • Oct 5th, 2017
Single-Core
1353
51.6412213740458%
Multi-Core
4748
30.74134023955973%
Intel Core i5-8400 | vs | Intel Core i9-12900K |
---|---|---|
Oct 5th, 2017 | Release Date | Nov 4th, 2021 |
Core i5 | Collection | Core i9 |
Coffee Lake | Codename | Alder Lake |
Intel Socket 1151 | Socket | Intel Socket 1700 |
Desktop | Segment | Desktop |
6 | Cores | 16 |
6 | Threads | 24 |
2.8 GHz | Base Clock Speed | 3.2 GHz |
4.0 GHz | Turbo Clock Speed | 5.2 GHz |
65 W | TDP | 125 W |
14 nm | Process Size | 10 nm |
28.0x | Multiplier | 32.0x |
None | Integrated Graphics | UHD Graphics 770 |
No | Overclockable | Yes |