The Core i5-8400 is a much slower gaming CPU than the Core i9-11900K, however, it's a better value for money, as it's €209.92 cheaper!
Advantages of the Core i5-8400
- Up to 54% cheaper – €176.90 vs €386.82
- A better value for money for gaming
- Consumes up to 48% less energy – 65 vs 125 Watts
Advantages of the Core i9-11900K
- At least 2x faster CPU for gaming
- Can execute more multi-threaded tasks simultaneously – 16 vs 6 threads
Core i5-8400 vs Core i9-11900K for Gaming
The CPU's performance in selected game and settings
Core i5-8400
Oct 5th, 2017
Average FPS
185
89%
Min 1% FPS
123
90%
Price, €
€176.9
100%
Value, €/FPS
€0.95/FPS
100%
Core i9-11900K
Mar 16th, 2021
Average FPS
207
100%
Min 1% FPS
136
100%
Price, €
€386.82
45%
Value, €/FPS
€1.86/FPS
51%
Core i5-8400 vs Core i9-11900K in My Games
The FPS you'll get in saved games
The FPS you'll get in saved games
Add a Game
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Synthetic Benchmarks
The Core i5-8400 vs Core i9-11900K in synthetic CPU benchmarks
Performance Specifications
The Core i5-8400 vs Core i9-11900K in core CPU performance specifications
Core i5-8400
Oct 5th, 2017
Cores
6-core
75%
L3 Cache
9 MB
56%
Base Frequency
2.8 GHz
80%
Turbo Frequency
4 GHz
75%
Max. DDR4 RAM Speed
2666 MHz
83%
Core i9-11900K
Mar 16th, 2021
Cores
8-core
100%
L3 Cache
16 MB
100%
Base Frequency
3.5 GHz
100%
Turbo Frequency
5.3 GHz
100%
Max. DDR4 RAM Speed
3200 MHz
100%
Specifications
Comparison of all specifications
Core i5-8400 | SpecificationsComparison of all specifications | Core i9-11900K |
|---|---|---|
| General | ||
| Oct 5th, 2017 | Release Date | Mar 16th, 2021 |
$182.00 | MSRP | $539.00 |
Desktop | Segment | Desktop |
| Intel Socket 1151 | Socket | Intel Socket 1200 |
| Coffee Lake | Codename | Rocket Lake |
65 W | Power Consumption | 125 W |
| Performance | ||
| 6 | Cores | 8 |
| 6 | Threads | 16 |
| 2.8 GHz | Base Frequency | 3.5 GHz |
| 4.0 GHz | Turbo Frequency | 5.3 GHz |
| 9 MB | L3 Cache | 16 MB |
| Other Features | ||
| DDR4 @ 2666 MHz | RAM | DDR4 @ 3200 MHz |
| UHD Graphics 630 | Integrated Graphics | UHD Graphics 750 |
| No | Overclockable | Yes |
