intel
Brand4/4
Cores/Threads3.3GHz
Base Clock95W
TDPIntel Core i5-2500K
intel
Brand4/4
Cores/Threads2.7GHz
Base Clock65W
TDPIntel Core i5-6400
Intel Core i5-2500K
Intel Core i5-2500K
$216 • Jan 2011
Intel Core i5-6400
$182 • Jul 2015
Intel Core i5-6400
Specs Comparison
| Specification | Intel Core i5-2500K | Intel Core i5-6400 |
|---|---|---|
| Cores | 4 | 4 |
| Threads | 4 | 4 |
| Base Clock | 3.3 GHz | 2.7 GHz |
| Boost Clock | 3.7 GHz | 3.3 GHz |
| Multiplier Unlocked | ✓ Yes | ✓ Yes |
| Multiplier | 33 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 | Intel HD 3000 | 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 i5-2500K
Intel Core i5-6400
Multi Core Performance
Intel Core i5-2500K
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 i5-2500K
Intel Core i5-6400
Multi Core Performance
Intel Core i5-2500K
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 i5-2500K
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 i5-2500K
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.
Intel Core i5-6400 Wins!
Based on 4 synthetic benchmarks
Intel Core i5-2500K
INTEL • 4/4 • 3.3GHz
Intel Core i5-6400
INTEL • 4/4 • 2.7GHz
Check out more comparisons
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