The Core i7-7700K is a much faster gaming CPU than the Core i5-6400, however, it's a much worse value for money, as it's $119.88 more expensive!
Advantages of the Core i7-7700K
- A much faster CPU for gaming
- Can execute more multi-threaded tasks simultaneously – 8 vs 4 threads
Advantages of the Core i5-6400
- Up to 71% cheaper – $49.00 vs $168.88
- A much better value for money for gaming
- Consumes up to 29% less energy – 65 vs 91 Watts
Core i7-7700K vs Core i5-6400 for Gaming
The CPU's performance in selected game and settings
Core i7-7700K
Jan 3rd, 2017
Average FPS
208
100%
Min 1% FPS
144
100%
Price, $
$168.88
29%
Value, $/FPS
$0.81/FPS
30%
Core i7-7700K vs Core i5-6400 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
Very High
1920x1080
+2
Average FPS
Average FPS
High
1920x1080
+1
Average FPS
Average FPS
Ultra
1920x1080
+2
Average FPS
Average FPS
Very High
1920x1080
Average FPS
Average FPS
Epic
1920x1080
+4
Average FPS
Average FPS
Add a Game
Select Settings
Synthetic Benchmarks
The Core i7-7700K vs Core i5-6400 in synthetic CPU benchmarks
Performance Specifications
The Core i7-7700K vs Core i5-6400 in core CPU performance specifications
Core i7-7700K
Jan 3rd, 2017
Cores
4-core
100%
L3 Cache
8 MB
100%
Base Frequency
4.2 GHz
100%
Turbo Frequency
4.5 GHz
100%
Max. DDR4 RAM Speed
2400 MHz
100%
Core i5-6400
Jul 2nd, 2015
Cores
4-core
100%
L3 Cache
6 MB
75%
Base Frequency
2.7 GHz
64%
Turbo Frequency
3.3 GHz
73%
Max. DDR4 RAM Speed
2133 MHz
89%
Specifications
Comparison of all specifications
Core i7-7700K | SpecificationsComparison of all specifications | Core i5-6400 |
|---|---|---|
| General | ||
Jan 3rd, 2017 | Release Date | Jul 2nd, 2015 |
| Not Available | MSRP | $182.00 |
Desktop | Segment | Desktop |
| Intel Socket 1151 | Socket | Intel Socket 1151 |
| Kaby Lake | Codename | Skylake |
| 91 W | Power Consumption | 65 W |
| Performance | ||
| 4 | Cores | 4 |
8 | Threads | 4 |
4.2 GHz | Base Frequency | 2.7 GHz |
4.5 GHz | Turbo Frequency | 3.3 GHz |
8 MB | L3 Cache | 6 MB |
| Other Features | ||
| DDR4 @ 2400 MHz | RAM | DDR4 @ 2133 MHz |
| HD 630 | Integrated Graphics | HD Graphics 530 |
Yes | Overclockable | No |
