The Core i7-7740X is a clear winner – it's a faster gaming CPU than the Core i5-8400 and it's also a much better value for money, as it's $50.20 cheaper!
Advantages of the Core i7-7740X
- A faster CPU for gaming
- Up to 42% cheaper – $69.80 vs $120.00
- A much better value for money for gaming
- Can execute more multi-threaded tasks simultaneously – 8 vs 6 threads
Advantages of the Core i5-8400
- Consumes up to 42% less energy – 65 vs 112 Watts
- Can run games without a dedicated GPU as it has integrated graphics
Core i7-7740X vs Core i5-8400 for Gaming
The CPU's performance in selected game and settings
Core i7-7740X
Jun 26th, 2017
Average FPS
209
100%
Min 1% FPS
145
100%
Price, $
$69.8
100%
Value, $/FPS
$0.33/FPS
100%
Core i7-7740X vs Core i5-8400 in My Games
The FPS you'll get in saved games, click on a game to change it
The FPS you'll get in saved games, click on a game to change it
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Synthetic Benchmarks
The Core i7-7740X vs Core i5-8400 in synthetic CPU benchmarks
Performance Specifications
The Core i7-7740X vs Core i5-8400 in core CPU performance specifications
Core i7-7740X
Jun 26th, 2017
Cores
4-core
67%
L3 Cache
8 MB
89%
Base Frequency
4.3 GHz
100%
Turbo Frequency
4.6 GHz
100%
Max. DDR4 RAM Speed
MHz
Core i5-8400
Oct 5th, 2017
Cores
6-core
100%
L3 Cache
9 MB
100%
Base Frequency
2.8 GHz
65%
Turbo Frequency
4 GHz
87%
Max. DDR4 RAM Speed
2666 MHz
100%
Specifications
Comparison of all specifications
Core i7-7740X | SpecificationsComparison of all specifications | Core i5-8400 |
|---|---|---|
| General | ||
| Jun 26th, 2017 | Release Date | Oct 5th, 2017 |
| Not Available | MSRP | $182.00 |
Desktop | Segment | Desktop |
| Intel Socket 2066 | Socket | Intel Socket 1151 |
| Kaby Lake-X | Codename | Coffee Lake |
| 112 W | Power Consumption | 65 W |
| Performance | ||
| 4 | Cores | 6 |
8 | Threads | 6 |
4.3 GHz | Base Frequency | 2.8 GHz |
4.6 GHz | Turbo Frequency | 4.0 GHz |
| 8 MB | L3 Cache | 9 MB |
| Other Features | ||
| DDR4 | RAM | DDR4 @ 2666 MHz |
| No | Integrated Graphics | UHD Graphics 630 |
Yes | Overclockable | No |
