Intel Core2 Duo E8400 vs AMD Athlon II X2 265 |
Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Intel Core2 Duo E8400
 | Much better performance per watt 1.83 pt/W | | Much lower typical power consumption 52.81W |
| | Much better overclocked clock speed (Air) 4.22 GHz | | Much lower annual home energy cost 15.66 $/year |
VS
Released September, 2010
AMD Athlon II X2 265
- 3.3 GHz
- Dual core
Reasons to buy the AMD Athlon II X2 265
| | Higher clock speed 3.3 GHz | | Higher Maximum operating temperature 74 °C |
| | Newer Sep, 2010 |
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Differences What are the advantages of each
| |||||||
| Much better performance per watt | 1.83 pt/W | vs | 1.11 pt/W | More than 65% better performance per watt | |||
|---|---|---|---|---|---|---|---|
| Much lower typical power consumption | 52.81W | vs | 102.72W | Around 50% lower typical power consumption | |||
| Much better overclocked clock speed (Air) | 4.22 GHz | vs | 3.86 GHz | Around 10% better overclocked clock speed (Air) | |||
| Much lower annual home energy cost | 15.66 $/year | vs | 36.79 $/year | 2.3x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 56.94 $/year | vs | 101.7 $/year | Around 45% lower annual commercial energy cost | |||
| Much better overclocked clock speed (Water) | 4.23 GHz | vs | 3.3 GHz | Around 30% better overclocked clock speed (Water) | |||
| |||||||
| Higher clock speed | 3.3 GHz | vs | 3 GHz | Around 10% higher clock speed | |||
| Higher Maximum operating temperature | 74 °C | vs | 72.4 °C | Almost the same | |||
| Newer | Sep, 2010 | vs | Jan, 2008 | Release date over 2 years later | |||
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Benchmarks Real world tests of Core2 Duo E8400 vs Athlon II X2 265
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
GeekBench (32-bit) Data courtesy Primate Labs
GeekBench
Cinebench R10 32-Bit
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Core2 Duo E8400 | vs | Athlon II X2 265 |
|---|---|---|---|
| Clock speed | 3 GHz | 3.3 GHz | |
| Cores | Dual core | Dual core | |
| Socket type | |||
| LGA 775 | |||
| AM3 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE4a | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| 3DNow! | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 65W | 65W | |
| Annual home energy cost | 15.66 $/year | 36.79 $/year | |
| Annual commercial energy cost | 56.94 $/year | 101.7 $/year | |
| Performance per watt | 1.83 pt/W | 1.11 pt/W | |
| Typical power consumption | 52.81W | 102.72W | |
details | Core2 Duo E8400 | vs | Athlon II X2 265 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 2 | 2 | |
| L2 cache | 6 MB | 2 MB | |
| L2 cache per core | 3 MB/core | 1 MB/core | |
| Manufacture process | 45 nm | 45 nm | |
| Max CPUs | 1 | 1 | |
| Voltage range | 0.85 - 1.36V | 0.82 - 1.4V | |
| Operating temperature | Unknown - 72.4°C | Unknown - 74°C | |
overclocking | |||
| Overclocked clock speed | 4.22 GHz | 3.86 GHz | |
| Overclocked clock speed (Water) | 4.23 GHz | 3.3 GHz | |
| Overclocked clock speed (Air) | 4.22 GHz | 3.86 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 | |
bus | |||
| Clock speed | 1,333 MHz | 2,000 MHz | |
 Intel Core2 Duo E8400  Report a correction |  AMD Athlon II X2 265 Report a correction |
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