intel
Brand4/4
Cores/Threads3.4GHz
Base Clock95W
TDPIntel Core i5-2550K
intel
Brand4/4
Cores/Threads2.7GHz
Base Clock65W
TDPIntel Core i5-6400
Intel Core i5-2550K
Intel Core i5-2550K
$235 • Jan 2012
Intel Core i5-6400
$182 • Jul 2015
Intel Core i5-6400
Specs Comparison
| Specification | Intel Core i5-2550K | Intel Core i5-6400 |
|---|---|---|
| Cores | 4 | 4 |
| Threads | 4 | 4 |
| Base Clock | 3.4 GHz | 2.7 GHz |
| Boost Clock | 3.8 GHz | 3.3 GHz |
| Multiplier Unlocked | ✓ Yes | ✓ Yes |
| Multiplier | 34 X | 27 X |
| TDP | 95 W | 65 W |
| Memory Support | DDR3 | DDR4 |
| Cache L1 | 64 KB | 64 KB |
| Cache L2 | 0.25 MB | 0.25 MB |
| Cache L3 | 6.00 MB | 6.00 MB |
| Integrated GPU | N/A | HD Graphics 530 |
| Architecture | Core i5 (Sandy Bridge) | Core i5 (Skylake) |
| Process Size | 32nm | 14nm |
| Socket | intel socket 1155 | intel socket 1151 |
| Foundry | Intel | Intel |
| Die Size | 216 mm² | 177 mm² |
| PCI Express | Gen 2, 16 Lanes(CPU only) | Gen 3, 16 Lanes(CPU only) |
| Transistors | 1160 million | N/A |
| Max Temperature | N/A | N/A |
Comparison in Tools
Cinebench R23
Industry-leading 3D rendering benchmark that measures real-world CPU processing power and performance
Single Core Performance
Intel Core i5-2550K
Intel Core i5-6400
Multi Core Performance
Intel Core i5-2550K
Intel Core i5-6400
Geekbench 5
Popular cross-platform CPU benchmark measuring single and multi-core performance in real-world tasks
Single Core Performance
Intel Core i5-2550K
Intel Core i5-6400
Multi Core Performance
Intel Core i5-2550K
Intel Core i5-6400
PassMark
PassMark CPU Mark is a popular synthetic benchmark that scores overall CPU performance (higher is better).
Overall CPU Score
Intel Core i5-2550K
Intel Core i5-6400
Blender Benchmark
Measures CPU rendering speed in Blender, reported in frames per second (FPS). Higher FPS means faster completion of 3D rendering tasks.
Blender FPS
Intel Core i5-2550K
Intel Core i5-6400
Comparison in Games
No benchmark data available for this combination of CPUs yet.
We're working on collecting performance data for this combination of CPUs. Please check back later.
It's a Tie!
Based on 4 synthetic benchmarks
Intel Core i5-2550K
INTEL • 4/4 • 3.4GHz
Intel Core i5-6400
INTEL • 4/4 • 2.7GHz
Check out more comparisons
Comments & Discussion
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