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| Intel Pentium E5400 vs Core2 Duo E6540 |
Released January, 2009
Intel Pentium E5400
- 2.7 GHz
- Dual core
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 |
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Differences What are the advantages of each
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Much newer manufacturing process | 45 nm | vs | 65 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
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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 | |||
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CPUBoss is not aware of any important advantages of the Core2 Duo E6540 vs the Pentium E5400. | |||||||
Benchmarks Real world tests of Pentium E5400 vs Core2 Duo E6540
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Pentium E5400
2,581
Core2 Duo E6540
2,293
GeekBench 3 (Single core) Data courtesy Primate Labs
Pentium E5400
1,400
Core2 Duo E6540
1,260
GeekBench 3 (AES single core) Data courtesy Primate Labs
Pentium E5400
114,800 MB/s
Core2 Duo E6540
99.4 MB/s
PassMark Data courtesy Passmark
Pentium E5400
1,632
Core2 Duo E6540
1,464
PassMark (Single Core)
Pentium E5400
1,091
Core2 Duo E6540
881
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 ![]() | Intel Core2 Duo E6540 ![]() |
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