Intel Core2 Quad Q9400 vs Duo E8600 |
Released July, 2008
Intel Core2 Quad Q9400
- 2.66 GHz
- Quad core
Reasons to buy the Intel Core2 Quad Q9400
 | More cores 4 | | More threads 4 |
| | Much better performance per watt 1.51 pt/W | | Much lower typical power consumption 77.19W |
VS
Released July, 2008
Intel Core2 Duo E8600
- 3.33 GHz
- Dual core
Reasons to buy the Duo E8600
| | Much higher clock speed 3.33 GHz | | Much better overclocked clock speed (Air) 4.61 GHz |
| | Higher Maximum operating temperature 72.4 °C | | Significantly better overclocked clock speed (Water) 4.6 GHz |
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Differences What are the advantages of each
| |||||||
| More cores | 4 | vs | 2 | Twice as many cores; run more applications at once | |||
|---|---|---|---|---|---|---|---|
| More threads | 4 | vs | 2 | Twice as many threads | |||
| Much better performance per watt | 1.51 pt/W | vs | 1.1 pt/W | More than 35% better performance per watt | |||
| Much lower typical power consumption | 77.19W | vs | 120.65W | More than 35% lower typical power consumption | |||
| Much lower annual home energy cost | 22.89 $/year | vs | 47.3 $/year | 2.1x lower annual home energy cost | |||
| Much lower annual commercial energy cost | 83.22 $/year | vs | 113.62 $/year | More than 25% lower annual commercial energy cost | |||
| |||||||
| Much higher clock speed | 3.33 GHz | vs | 2.66 GHz | More than 25% higher clock speed | |||
| Much better overclocked clock speed (Air) | 4.61 GHz | vs | 3.54 GHz | More than 30% better overclocked clock speed (Air) | |||
| Higher Maximum operating temperature | 72.4 °C | vs | 71.4 °C | Almost the same | |||
| Significantly better overclocked clock speed (Water) | 4.6 GHz | vs | 4.15 GHz | More than 10% better overclocked clock speed (Water) | |||
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Benchmarks Real world tests of Core2 Quad Q9400 vs Duo E8600
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 (64-bit) Data courtesy Primate Labs
GeekBench
PassMark Data courtesy Passmark
PassMark (Single Core)
Specifications Full list of technical specs
summary | Core2 Quad Q9400 | vs | Duo E8600 |
|---|---|---|---|
| Clock speed | 2.66 GHz | 3.33 GHz | |
| Cores | Quad core | Dual core | |
| Socket type | |||
| LGA 775 | |||
features | |||
| Has a NX bit | Yes | Yes | |
| Supports trusted computing | Yes | Yes | |
| Has virtualization support | Yes | Yes | |
| Instruction set extensions | |||
| SSE2 | |||
| MMX | |||
| SSE3 | |||
| SSE | |||
| SSE4.1 | |||
| Supplemental SSE3 | |||
| Supports dynamic frequency scaling | Yes | Yes | |
power consumption | |||
| TDP | 95W | 65W | |
| Annual home energy cost | 22.89 $/year | 47.3 $/year | |
| Annual commercial energy cost | 83.22 $/year | 113.62 $/year | |
| Performance per watt | 1.51 pt/W | 1.1 pt/W | |
| Typical power consumption | 77.19W | 120.65W | |
bus | |||
| Architecture | FSB | FSB | |
| Number of links | 1 | 1 | |
| Clock speed | 1,333 MHz | 1,333 MHz | |
details | Core2 Quad Q9400 | vs | Duo E8600 |
|---|---|---|---|
| Architecture | x86-64 | x86-64 | |
| Threads | 4 | 2 | |
| L2 cache | 6 MB | 6 MB | |
| L2 cache per core | 1.5 MB/core | 3 MB/core | |
| Manufacture process | 45 nm | 45 nm | |
| Transistor count | 456,000,000 | 410,000,000 | |
| Max CPUs | 1 | 1 | |
| Clock multiplier | 8 | 10 | |
| Voltage range | 0.85 - 1.36V | 0.85 - 1.36V | |
| Operating temperature | Unknown - 71.4°C | Unknown - 72.4°C | |
overclocking | |||
| Overclock popularity | 34 | 9 | |
| Overclocked clock speed | 3.54 GHz | 4.61 GHz | |
| Overclocked clock speed (Water) | 4.15 GHz | 4.6 GHz | |
| Overclocked clock speed (Air) | 3.54 GHz | 4.61 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 Core2 Quad Q9400  Report a correction |  Intel Core2 Duo E8600 Report a correction |
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