Winner
Intel Pentium E5400
CPUBoss recommends the Intel Pentium E5400 based on its overclocking.
See full details Intel Pentium E5400 vs Core2 Duo E6540 |
Released January, 2009
Intel Pentium E5400
- 2.7 GHz
- Dual core
2.9 Out of 10
Reasons to buy the Intel Pentium E5400
 | Much newer manufacturing process 45 nm | | Significantly higher clock speed 2.7 GHz |
| | Much better performance per watt 1.73 pt/W | | Much better overclocked clock speed (Air) 3.75 GHz |
VS
CPUBoss Review Our evaluation of E5400 vs E6540 among desktop CPUs (45 to 75W)
Performance | |
Benchmark performance using all cores | |
| PCMark 8 Home 3.0 Accelerated, PassMark and 1 more | |
Single-core Performance | |
Individual core benchmark performance | |
| PassMark (Single Core), Geekbench 3 Single Core and 1 more | |
Integrated Graphics | |
Integrated GPU performance for graphics | |
| Fire Strike | |
Integrated Graphics (OpenCL) | |
Integrated GPU performance for parallel computing | |
| CompuBench 1.5 Bitcoin mining and 4 more | |
Performance per Watt | |
How efficiently does the processor use electricity? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
Value | |
Are you paying a premium for performance? | |
| Fire Strike, CompuBench 1.5 Bitcoin mining and 11 more | |
| 2.9 | CPUBoss Score |
Combination of all six facets | |
 | Winner |
Cast your vote Do you agree or disagree with CPUBoss?
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Differences What are the advantages of each
| |||||||
| Much newer manufacturing process | 45 nm | vs | 65 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
|---|---|---|---|---|---|---|---|
| Significantly higher clock speed | 2.7 GHz | vs | 2.33 GHz | More than 15% higher clock speed | |||
| Much better performance per watt | 1.73 pt/W | vs | 0.98 pt/W | More than 75% better performance per watt | |||
| Much better overclocked clock speed (Air) | 3.75 GHz | vs | 3.41 GHz | Around 10% better overclocked clock speed (Air) | |||
| Much better overclocked clock speed (Water) | 4.49 GHz | vs | 2.33 GHz | More than 90% better overclocked clock speed (Water) | |||
| Higher Maximum operating temperature | 74.1 °C | vs | 72 °C | Around 5% higher Maximum operating temperature | |||
| Newer | Jan, 2009 | vs | Jul, 2007 | Release date over 1 years later | |||
| |||||||
| CPUBoss is not aware of any important advantages of the Core2 Duo E6540 vs the Pentium E5400. | |||||||
Report a correction
Benchmarks Real world tests of Pentium E5400 vs Core2 Duo E6540
GeekBench 3 (Multi-core) Data courtesy Primate Labs
GeekBench 3 (Single core) Data courtesy Primate Labs
GeekBench 3 (AES single core) Data courtesy Primate Labs
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Pentium E5400 | vs | Core2 Duo E6540 |
|---|---|---|---|
| Clock speed | 2.7 GHz | 2.33 GHz | |
| Cores | Dual core | Dual core | |
| Socket type | |||
| LGA 775 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | No | No | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 65W | 65W | |
| Annual home energy cost | 15.66 $/year | 15.66 $/year | |
| Annual commercial energy cost | 56.94 $/year | 56.94 $/year | |
| Performance per watt | 1.73 pt/W | 0.98 pt/W | |
| Typical power consumption | 52.81W | 52.81W | |
bus | |||
| Architecture | FSB | FSB | |
| Number of links | 1 | 1 | |
| Clock speed | 800 MHz | 1,333 MHz | |
details | Pentium E5400 | vs | Core2 Duo E6540 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 2 | 2 | |
| L2 cache | 2 MB | 4 MB | |
| L2 cache per core | 1 MB/core | 2 MB/core | |
| Manufacture process | 45 nm | 65 nm | |
| Transistor count | 228,000,000 | 291,000,000 | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 13 | 7 | |
| Voltage range | 0.85 - 1.36V | 0.85 - 1.5V | |
| Operating temperature | Unknown - 74.1°C | Unknown - 72°C | |
overclocking | |||
| Overclocked clock speed | 3.75 GHz | 3.41 GHz | |
| Overclocked clock speed (Water) | 4.49 GHz | 2.33 GHz | |
| Overclocked clock speed (Air) | 3.75 GHz | 3.41 GHz | |
integrated graphics | |||
| GPU | None | None | |
| Label | N/A | N/A | |
| Latest DirectX | N/A | N/A | |
| Number of displays supported | N/A | N/A | |
| GPU clock speed | N/A | N/A | |
| Turbo clock speed | N/A | N/A | |
| 3DMark06 | N/A | N/A | |
 Intel Pentium E5400  Report a correction |  Intel Core2 Duo E6540 Report a correction |
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