Intel Core2 Duo E8400 vs AMD Opteron 146 |
Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Intel Core2 Duo E8400
 | Much more l2 cache 6 MB | | Much newer manufacturing process 45 nm |
| | Significantly higher clock speed 3 GHz | | Much more l2 cache per core 3 MB/core |
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Intel Core2 Duo E8400CPUBoss Winner |  | |
Differences What are the advantages of each
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| Much more l2 cache | 6 MB | vs | 1 MB | 6x more l2 cache; more data can be stored in the l2 cache for quick access later | |||
|---|---|---|---|---|---|---|---|
| Much newer manufacturing process | 45 nm | vs | 130 nm | A newer manufacturing process allows for a more powerful, yet cooler running processor | |||
| Significantly higher clock speed | 3 GHz | vs | 2 GHz | 50% higher clock speed | |||
| Much more l2 cache per core | 3 MB/core | vs | 1 MB/core | 3x more l2 cache per core | |||
| Much better overclocked clock speed (Air) | 4.22 GHz | vs | 2.86 GHz | More than 45% better overclocked clock speed (Air) | |||
| Significantly better PassMark (Single core) score | 1,251 | vs | 616 | More than 2x better PassMark (Single core) score | |||
| Newer | Jan, 2008 | vs | May, 2004 | Release date over 3 years later | |||
| Better PassMark score | 2,160 | vs | 532 | More than 4x better PassMark score | |||
| Much better overclocked clock speed (Water) | 4.23 GHz | vs | 2 GHz | More than 2x better overclocked clock speed (Water) | |||
| More cores | 2 | vs | 1 | Twice as many cores; run more applications at once | |||
| Higher Maximum operating temperature | 72.4 °C | vs | 65 °C | More than 10% higher Maximum operating temperature | |||
| Better performance per watt | 1.83 pt/W | vs | 0.68 pt/W | Around 2.8x better performance per watt | |||
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| CPUBoss is not aware of any important advantages of the AMD Opteron 146 vs the Intel Core2 Duo E8400. | |||||||
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Benchmarks Real world tests of Core2 Duo E8400 vs Opteron 146
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 | Core2 Duo E8400 | vs | Opteron 146 |
|---|---|---|---|
| Clock speed | 3 GHz | 2 GHz | |
| Cores | Dual core | Single core | |
| Socket type | |||
| LGA 775 | |||
| 939 | |||
| 940 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| 3DNow! | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
details | Core2 Duo E8400 | vs | Opteron 146 |
|---|---|---|---|
| Threads | 2 | 1 | |
| L2 cache | 6 MB | 1 MB | |
| L2 cache per core | 3 MB/core | 1 MB/core | |
| Manufacture process | 45 nm | 130 nm | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 9 | 10 | |
| Voltage range | 0.85 - 1.36V | 1.3 - UnknownV | |
| Operating temperature | Unknown - 72.4°C | 0 - 65°C | |
overclocking | |||
| Overclocked clock speed | 4.22 GHz | 2.86 GHz | |
| Overclocked clock speed (Water) | 4.23 GHz | 2 GHz | |
| Overclocked clock speed (Air) | 4.22 GHz | 2.86 GHz | |
power consumption | |||
| TDP | 65W | 67W | |
| Annual home energy cost | 15.66 $/year | 16.14 $/year | |
| Annual commercial energy cost | 56.94 $/year | 58.69 $/year | |
| Performance per watt | 1.83 pt/W | 0.68 pt/W | |
| Typical power consumption | 52.81W | 54.44W | |
 Intel Core2 Duo E8400  Report a correction |  AMD Opteron 146 Report a correction |
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