Intel Core i7-7700K vs Intel Core i5-6400
Summary
Intel Core i7-7700K
145%
Intel Core i5-6400
100%
Relative performance
Intel Core i7-7700K
139%
Intel Core i5-6400
100%
Relative performance
Intel Core i7-7700K
150%
Intel Core i5-6400
100%
Relative performance
Reasons to consider Intel Core i7-7700K |
| Much higher single threaded performance (around 39% higher), makes a noticeable performance difference in gaming and the majority of applications. |
| Much higher multi threaded performance (around 50% higher). This allows for higher performance in professional applications like encoding or heavy multitasking. |
| Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i5-6400. |
| Around 45% higher average synthetic performance. |
Reasons to consider Intel Core i5-6400 |
| None |
Gaming
HWBench recommends Intel Core i7-7700K
Based on game and synthetic benchmarks, and theoretical specifications.
Productivity
HWBench recommends Intel Core i7-7700K
Based on productivity benchmarks, overall multithreaded performance and theoretical specifications.
Features
| Intel Core i7-7700K | | Intel Core i5-6400 | |
|---|
| MMX | | | |
| SSE | | | |
| SSE2 | | | |
| SSE3 | | | |
| SSSE3 | | | |
| SSE4.2 | | | |
| AVX | | | |
| AVX2 | | | |
| EIST | | | |
| Intel 64 | | | |
| XD bit | | | |
| VT-x | | | |
| VT-d | | | |
| HTT | | | |
| AES-NI | | | |
| TSX | | | |
| TXT | | | |
| CLMUL | | | |
| FMA3 | | | |
| F16C | | | |
| BMI1 | | | |
| BMI2 | | | |
| Boost 2.0 | | | |
| vPro | | | |
Architecture
| Intel Core i7-7700K | | Intel Core i5-6400 | |
|---|
| Architecture | Intel_Kabylake | vs | Intel_Skylake |
| Market | Desktop | vs | Desktop |
| Memory Support | DDR4 | vs | DDR4 |
| Codename | Kaby Lake | vs | Skylake |
| Release Date | Sep 2016 | vs | Jul 2015 |
Cores
| Intel Core i7-7700K | | Intel Core i5-6400 | |
|---|
| Cores | 4 | vs | 4 |
| Threads | 8 | vs | 4 |
| SMPs | 1 | vs | 1 |
| Integrated Graphics | Intel HD Graphics 630 | vs | No |
Cache
| Intel Core i7-7700K | | Intel Core i5-6400 | |
|---|
| L1 Cache | 64 KB (per core) | vs | 64 KB (per core) |
| L2 Cache | 256 KB (per core) | vs | 256 KB (per core) |
| L3 Cache | 8192 KB (shared) | vs | 6144 KB (shared) |
Physical
| Intel Core i7-7700K | | Intel Core i5-6400 | |
|---|
| Socket | Intel Socket 1151 | vs | Intel Socket 1151 |
| Max Case Temp | 72°C | vs | 72°C |
| Package | | vs | FC-LGA12C |
| Die Size | unknown | vs | 177mm² |
| Process | 14 nm | vs | 14 nm |
Performance
| Intel Core i7-7700K | | Intel Core i5-6400 | |
|---|
| Cpu Frequency | 4200 MHz | vs | 2700 MHz |
| Turbo Clock | 4500 MHz | vs | 3300 MHz |
| Base Clock | 100 MHz | vs | 100 MHz |
| Voltage | unknown | vs | unknown |
| TDP | 95 W | vs | 65 W |
Intel Core i7-7700K
5400 points
Intel Core i5-6400
3795 points
Points - higher is better
Intel Core i7-7700K
24192 points
Intel Core i5-6400
12420 points
Points - higher is better
points - higher is better
points - higher is better