The Core i5-9400 is the comparison's loser – it's a slower gaming CPU than the Core i5-7640X and it's also a worse value for money, as it's £10.00 more expensive!
Advantages of the Core i5-9400
- Consumes up to 42% less energy – 65 vs 112 Watts
- Can execute more multi-threaded tasks simultaneously – 6 vs 4 threads
- Has an integrated GPU, while the Core i5-7640X cannot run games without a dedicated GPU
Advantages of the Core i5-7640X
- A much faster CPU for gaming
- Up to 6% cheaper – £166.66 vs £176.66
- A better value for money for gaming
Core i5-9400 vs Core i5-7640X for Gaming
The CPU's performance in selected game and settings
Core i5-9400
Oct 19th, 2018
Average FPS
186
96%
Min 1% FPS
123
96%
Price, £
£176.66
94%
Value, £/FPS
£0.94/FPS
90%
Core i5-7640X
Jun 26th, 2017
Average FPS
194
100%
Min 1% FPS
128
100%
Price, £
£166.66
100%
Value, £/FPS
£0.85/FPS
100%
Core i5-9400 vs Core i5-7640X 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 i5-9400 vs Core i5-7640X in synthetic CPU benchmarks
Performance Specifications
The Core i5-9400 vs Core i5-7640X in core CPU performance specifications
Core i5-9400
Oct 19th, 2018
Cores
6-core
100%
L3 Cache
9 MB
100%
Base Frequency
2.9 GHz
72%
Turbo Frequency
4.1 GHz
98%
Max. DDR4 RAM Speed
2666 MHz
100%
Core i5-7640X
Jun 26th, 2017
Cores
4-core
67%
L3 Cache
6 MB
67%
Base Frequency
4 GHz
100%
Turbo Frequency
4.2 GHz
100%
Max. DDR4 RAM Speed
MHz
Specifications
Comparison of all specifications
Core i5-9400 | SpecificationsComparison of all specifications | Core i5-7640X |
|---|---|---|
| General | ||
Oct 19th, 2018 | Release Date | Jun 26th, 2017 |
| Not Available | MSRP | Not Available |
Desktop | Segment | Desktop |
| Intel Socket 1151 | Socket | Intel Socket 2066 |
| Coffee Lake | Codename | Kaby Lake |
65 W | Power Consumption | 112 W |
| Performance | ||
6 | Cores | 4 |
6 | Threads | 4 |
| 2.9 GHz | Base Frequency | 4.0 GHz |
| 4.1 GHz | Turbo Frequency | 4.2 GHz |
9 MB | L3 Cache | 6 MB |
| Other Features | ||
| DDR4 @ 2666 MHz | RAM | DDR4 |
UHD 630 | Integrated Graphics | No |
| No | Overclockable | Yes |
