Processor comparison
Intel Core i5-2550K vs Intel Core i5-6400
Intel
Intel Core i5-2550K
Intel Socket 1155
3400 MHz
4 cores
Jan 2012
DESKTOP
VS
Intel
Intel Core i5-6400
Intel Socket 1151
2700 MHz
4 cores
Jul 2015
DESKTOP
Summary
Synthetic performance index
- Intel Core i5-2550K100%
- Intel Core i5-6400103%
Relative performance
Single thread performance index
- Intel Core i5-2550K100%
- Intel Core i5-6400101%
Relative performance
Multi thread performance index
- Intel Core i5-2550K100%
- Intel Core i5-6400105%
Relative performance
Reasons to consider the Intel Core i5-2550K
Reasons to consider the Intel Core i5-6400
- 5% higher multi threaded performance.
- This is a newer product, it might have better application compatibility/performance (check features chart below).
Gaming
No clear winner declared
Productivity
No clear winner declared
Specifications
Features
| Intel Core i5-2550K | Intel Core i5-6400 |
|---|
| MMX | | |
| SSE | | |
| SSE2 | | |
| SSE3 | | |
| SSSE3 | | |
| SSE4.2 | | |
| AVX | | |
| EIST | | |
| Intel 64 | | |
| XD bit | | |
| VT-x | | |
| AES-NI | | |
| AVX2 | | |
| VT-d | | |
| TSX | | |
| TXT | | |
| CLMUL | | |
| FMA3 | | |
| F16C | | |
| BMI1 | | |
| BMI2 | | |
| vPro | | |
| Boost 2.0 | | |
Architecture
| Intel Core i5-2550K | Intel Core i5-6400 |
|---|
| Architecture | Intel_SandyBridge | Intel_Skylake |
| Market | Desktop | Desktop |
| Memory Support | DDR3 | DDR4 |
| Codename | Sandy Bridge | Skylake |
| Release Date | Jan 2012 | Jul 2015 |
Cores
| Intel Core i5-2550K | Intel Core i5-6400 |
|---|
| Cores | 4 | 4 |
| Threads | 4 | 4 |
| SMPs | 1 | 1 |
| Integrated Graphics | No | No |
Cache
| Intel Core i5-2550K | Intel Core i5-6400 |
|---|
| L1 Cache | 64 KB (per core) | 64 KB (per core) |
| L2 Cache | 256 KB (per core) | 256 KB (per core) |
| L3 Cache | 6144 KB (shared) | 6144 KB (shared) |
Physical
| Intel Core i5-2550K | Intel Core i5-6400 |
|---|
| Socket | Intel Socket 1155 | Intel Socket 1151 |
| Max Case Temp | unknown | 72°C |
| Package | FC-LGA10 | FC-LGA12C |
| Die Size | 216mm² | 177mm² |
| Process | 32 nm | 14 nm |
Performance
| Intel Core i5-2550K | Intel Core i5-6400 |
|---|
| Cpu Frequency | 3400 MHz | 2700 MHz |
| Turbo Clock | 3800 MHz | 3300 MHz |
| Base Clock | 100 MHz | 100 MHz |
| Voltage | unknown | unknown |
| TDP | 95 W | 65 W |
Raw performance index
Raw single-thread performance estimation
- Intel Core i5-2550K3800 points
- Intel Core i5-64003795 points
Points - higher is better
Raw multi-thread performance estimation
- Intel Core i5-2550K13600 points
- Intel Core i5-640012420 points
Points - higher is better
Synthetic benchmarks
GeekBench 3 (32-bit Multi Core)
- Intel Core i5-2550K10621
- Intel Core i5-640010168
points - higher is better
GeekBench 3 (64-bit Single Core)
- Intel Core i5-2550K3502
- Intel Core i5-64003324
points - higher is better
GeekBench 3 (64-bit Multi Core)
- Intel Core i5-2550K11863
- Intel Core i5-640010338
points - higher is better
GeekBench 3 (32-bit Single Core)
- Intel Core i5-2550K3321
- Intel Core i5-64003252
points - higher is better
Cinebench R15 CPU Single 64Bit
- Intel Core i5-2550K (simulated)125.3
- Intel Core i5-6400 (simulated)140.25
points - higher is better
Cinebench R15 CPU Multi 64Bit
- Intel Core i5-2550K (simulated)484.24
- Intel Core i5-6400 (simulated)644.14
points - higher is better