The Core i5-6400 is a slower gaming CPU than the Core i9-9900X, however, it's a much better value for money, as it's $341.40 cheaper!
Advantages of the Core i5-6400
- Up to 85% cheaper – $58.59 vs $399.99
- A much better value for money for gaming
- Consumes up to 61% less energy – 65 vs 165 Watts
- Has an integrated GPU, while the Core i9-9900X cannot run games without a dedicated GPU
Advantages of the Core i9-9900X
- A much faster CPU for gaming
- Can execute more multi-threaded tasks simultaneously – 20 vs 4 threads
Core i5-6400 vs Core i9-9900X for Gaming
The CPU's performance in selected game and settings
Core i5-6400
Jul 2nd, 2015
Average FPS
180
97%
Min 1% FPS
120
97%
Price, $
$58.59
100%
Value, $/FPS
$0.32/FPS
100%
Core i9-9900X
Oct 19th, 2018
Average FPS
186
100%
Min 1% FPS
124
100%
Price, $
$399.99
14%
Value, $/FPS
$2.15/FPS
15%
Core i5-6400 vs Core i9-9900X in My Games
The FPS you'll get in saved games
The FPS you'll get in saved games
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Synthetic Benchmarks
The Core i5-6400 vs Core i9-9900X in synthetic CPU benchmarks
Performance Specifications
The Core i5-6400 vs Core i9-9900X in core CPU performance specifications
Core i5-6400
Jul 2nd, 2015
Cores
4-core
40%
L3 Cache
6 MB
31%
Base Frequency
2.7 GHz
77%
Turbo Frequency
3.3 GHz
75%
Max. DDR4 RAM Speed
2133 MHz
80%
Core i9-9900X
Oct 19th, 2018
Cores
10-core
100%
L3 Cache
19.25 MB
100%
Base Frequency
3.5 GHz
100%
Turbo Frequency
4.4 GHz
100%
Max. DDR4 RAM Speed
2666 MHz
100%
Specifications
Comparison of all specifications
Core i5-6400 | SpecificationsComparison of all specifications | Core i9-9900X |
|---|---|---|
| General | ||
| Jul 2nd, 2015 | Release Date | Oct 19th, 2018 |
$182.00 | MSRP | $989.00 |
Desktop | Segment | Desktop |
| Intel Socket 1151 | Socket | Intel Socket 2066 |
| Skylake | Codename | Skylake |
65 W | Power Consumption | 165 W |
| Performance | ||
| 4 | Cores | 10 |
| 4 | Threads | 20 |
| 2.7 GHz | Base Frequency | 3.5 GHz |
| 3.3 GHz | Turbo Frequency | 4.4 GHz |
| 6 MB | L3 Cache | 19.25 MB |
| Other Features | ||
| DDR4 @ 2133 MHz | RAM | DDR4 @ 2666 MHz |
HD Graphics 530 | Integrated Graphics | No |
| No | Overclockable | Yes |
