Processor comparison
Intel Core i5-9400T vs Intel Core i5-2550K
Intel
Intel Core i5-9400T
Intel Socket 1151
1800 MHz
6 cores
Sep 2018
DESKTOP
VS
Intel
Intel Core i5-2550K
Intel Socket 1155
3400 MHz
4 cores
Jan 2012
DESKTOP
Summary
Synthetic performance index
- Intel Core i5-9400T112%
- Intel Core i5-2550K100%
Relative performance
Single thread performance index
- Intel Core i5-9400T118%
- Intel Core i5-2550K100%
Relative performance
Multi thread performance index
- Intel Core i5-9400T107%
- Intel Core i5-2550K100%
Relative performance
Reasons to consider the Intel Core i5-9400T
- 18% higher single threaded performance.
- 7% higher multi threaded performance.
- 60 watts lower power draw.
- This is a newer product, it might have better application compatibility/performance (check features chart below).
- Has an integrated GPU, which allows to run the system without a dedicated graphics card, unlike the Intel Core i5-2550K.
- Around 12% higher average synthetic performance.
Reasons to consider the Intel Core i5-2550K
Gaming
HWSpot recommends the Intel Core i5-9400T
Based on game and synthetic benchmarks, and theoretical specifications.
Productivity
No clear winner declared
Specifications
Features
| Intel Core i5-9400T | Intel Core i5-2550K |
|---|
| MMX | | |
| SSE | | |
| SSE2 | | |
| SSE3 | | |
| SSSE3 | | |
| SSE4.2 | | |
| AVX | | |
| AVX2 | | |
| EIST | | |
| Intel 64 | | |
| XD bit | | |
| VT-x | | |
| VT-d | | |
| AES-NI | | |
| TSX | | |
| TXT | | |
| CLMUL | | |
| FMA3 | | |
| F16C | | |
| BMI1 | | |
| BMI2 | | |
| Boost 2.0 | | |
Architecture
| Intel Core i5-9400T | Intel Core i5-2550K |
|---|
| Architecture | Intel_Coffelake | Intel_SandyBridge |
| Market | Desktop | Desktop |
| Memory Support | DDR4 | DDR3 |
| Codename | Coffee Lake | Sandy Bridge |
| Release Date | Sep 2018 | Jan 2012 |
Cores
| Intel Core i5-9400T | Intel Core i5-2550K |
|---|
| Cores | 6 | 4 |
| Threads | 6 | 4 |
| SMPs | 1 | 1 |
| Integrated Graphics | UHD Graphics 630 | No |
Cache
| Intel Core i5-9400T | Intel Core i5-2550K |
|---|
| L1 Cache | 64 KB (per core) | 64 KB (per core) |
| L2 Cache | 256 KB (per core) | 256 KB (per core) |
| L3 Cache | 9216 KB (shared) | 6144 KB (shared) |
Physical
| Intel Core i5-9400T | Intel Core i5-2550K |
|---|
| Socket | Intel Socket 1151 | Intel Socket 1155 |
| Max Case Temp | 72°C | unknown |
| Package | FC-LGA1151 | FC-LGA10 |
| Die Size | unknown | 216mm² |
| Process | 14 nm | 32 nm |
Performance
| Intel Core i5-9400T | Intel Core i5-2550K |
|---|
| Cpu Frequency | 1800 MHz | 3400 MHz |
| Turbo Clock | 3400 MHz | 3800 MHz |
| Base Clock | 100 MHz | 100 MHz |
| Voltage | variable | unknown |
| TDP | 35 W | 95 W |
Raw performance index
Raw single-thread performance estimation
- Intel Core i5-9400T4080 points
- Intel Core i5-2550K3800 points
Points - higher is better
Raw multi-thread performance estimation
- Intel Core i5-9400T12960 points
- Intel Core i5-2550K13600 points
Points - higher is better
Synthetic benchmarks
Cinebench R15 CPU Single 64Bit
- Intel Core i5-9400T (simulated)147.86
- Intel Core i5-2550K (simulated)125.3
points - higher is better
Cinebench R15 CPU Multi 64Bit
- Intel Core i5-9400T (simulated)519
- Intel Core i5-2550K (simulated)484.24
points - higher is better