The Core i9-7900X is a much faster gaming CPU than the Core i5-6400, however, it's a much worse value for money, as it's $241.73 more expensive!
Advantages of the Core i9-7900X
- A much faster CPU for gaming
- Can execute more multi-threaded tasks simultaneously – 20 vs 4 threads
Advantages of the Core i5-6400
- Up to 83% cheaper – $51.06 vs $292.79
- A much better value for money for gaming
- Consumes up to 54% less energy – 65 vs 140 Watts
- Has an integrated GPU, while the Core i9-7900X cannot run games without a dedicated GPU
Core i9-7900X vs Core i5-6400 for Gaming
The CPU's performance in selected game and settings
Core i9-7900X
Jun 26th, 2017
Average FPS
187
100%
Min 1% FPS
124
100%
Price, €
€292.79
17%
Value, €/FPS
€1.56/FPS
18%
Core i5-6400
Jul 2nd, 2015
Average FPS
180
96%
Min 1% FPS
120
97%
Price, €
€51.06
100%
Value, €/FPS
€0.28/FPS
100%
Core i9-7900X vs Core i5-6400 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 i9-7900X vs Core i5-6400 in synthetic CPU benchmarks
Performance Specifications
The Core i9-7900X vs Core i5-6400 in core CPU performance specifications
Core i9-7900X
Jun 26th, 2017
Cores
10-core
100%
L3 Cache
14 MB
100%
Base Frequency
3.3 GHz
100%
Turbo Frequency
4.3 GHz
100%
Max. DDR4 RAM Speed
2666 MHz
100%
Core i5-6400
Jul 2nd, 2015
Cores
4-core
40%
L3 Cache
6 MB
43%
Base Frequency
2.7 GHz
82%
Turbo Frequency
3.3 GHz
77%
Max. DDR4 RAM Speed
2133 MHz
80%
Specifications
Comparison of all specifications
Core i9-7900X | SpecificationsComparison of all specifications | Core i5-6400 |
|---|---|---|
| General | ||
Jun 26th, 2017 | Release Date | Jul 2nd, 2015 |
| $999.00 | MSRP | $182.00 |
Desktop | Segment | Desktop |
| Intel Socket 2066 | Socket | Intel Socket 1151 |
| Skylake-E/EP | Codename | Skylake |
| 140 W | Power Consumption | 65 W |
| Performance | ||
10 | Cores | 4 |
20 | Threads | 4 |
3.3 GHz | Base Frequency | 2.7 GHz |
4.3 GHz | Turbo Frequency | 3.3 GHz |
14 MB | L3 Cache | 6 MB |
| Other Features | ||
| DDR4 @ 2666 MHz | RAM | DDR4 @ 2133 MHz |
| No | Integrated Graphics | HD Graphics 530 |
Yes | Overclockable | No |
