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| Intel Core2 Quad Q9650 vs Duo E8400 |
Released August, 2008
Intel Core2 Quad Q9650
- 3 GHz
- Quad core
- Unlocked
Reasons to buy the Intel Core2 Quad Q9650
![]() | More cores 4 | ![]() | More threads 4 |
![]() | Newer Aug, 2008 |
VS
Released January, 2008
Intel Core2 Duo E8400
- 3 GHz
- Dual core
Reasons to buy the Duo E8400
![]() | Much lower typical power consumption 52.81W | ![]() | Better overclocked clock speed (Air) 4.22 GHz |
![]() | Significantly lower annual home energy cost 15.66 $/year | ![]() | Significantly lower annual commercial energy cost 56.94 $/year |
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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 | |||
Newer | Aug, 2008 | vs | Jan, 2008 | Release date 7 months later | |||
| |||||||
Much lower typical power consumption | 52.81W | vs | 77.19W | More than 30% lower typical power consumption | |||
Better overclocked clock speed (Air) | 4.22 GHz | vs | 4.15 GHz | Almost the same | |||
Significantly lower annual home energy cost | 15.66 $/year | vs | 22.89 $/year | More than 30% lower annual home energy cost | |||
Significantly lower annual commercial energy cost | 56.94 $/year | vs | 83.22 $/year | More than 30% lower annual commercial energy cost | |||
Higher Maximum operating temperature | 72.4 °C | vs | 71.4 °C | Almost the same |
Benchmarks Real world tests of Core2 Quad Q9650 vs Duo E8400
GeekBench 3 (Multi-core) Data courtesy Primate Labs
Core2 Quad Q9650
5,792
Core2 Duo E8400
2,982
GeekBench 3 (Single core) Data courtesy Primate Labs
Core2 Quad Q9650
1,692
Core2 Duo E8400
1,625
GeekBench 3 (AES single core) Data courtesy Primate Labs
Core2 Quad Q9650
128,200 MB/s
Core2 Duo E8400
128,000 MB/s
GeekBench (32-bit) Data courtesy Primate Labs
Core2 Quad Q9650
5,442
Core2 Duo E8400
2,826
GeekBench (64-bit) Data courtesy Primate Labs
Core2 Quad Q9650
5,901
Core2 Duo E8400
3,092
GeekBench
Core2 Quad Q9650
7,010
Core2 Duo E8400
4,794
PassMark Data courtesy Passmark
Core2 Quad Q9650
4,222
Core2 Duo E8400
2,160
PassMark (Single Core)
Core2 Quad Q9650
1,267
Core2 Duo E8400
1,251
Specifications Full list of technical specs
summary | Core2 Quad Q9650 | vs | Duo E8400 |
---|---|---|---|
Clock speed | 3 GHz | 3 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 | 15.66 $/year | |
Annual commercial energy cost | 83.22 $/year | 56.94 $/year | |
Performance per watt | 1.47 pt/W | 1.83 pt/W | |
Typical power consumption | 77.19W | 52.81W | |
bus | |||
Architecture | FSB | FSB | |
Number of links | 1 | 1 | |
Clock speed | 1,333 MHz | 1,333 MHz |
details | Core2 Quad Q9650 | vs | Duo E8400 |
---|---|---|---|
Architecture | x86-64 | x86-64 | |
Threads | 4 | 2 | |
L2 cache | 12 MB | 6 MB | |
L2 cache per core | 3 MB/core | 3 MB/core | |
Manufacture process | 45 nm | 45 nm | |
Transistor count | 820,000,000 | 410,000,000 | |
Max CPUs | 1 | 1 | |
Clock multiplier | 9 | 9 | |
Voltage range | 0.85 - 1.36V | 0.85 - 1.36V | |
Operating temperature | Unknown - 71.4°C | Unknown - 72.4°C | |
overclocking | |||
Overclocked clock speed | 4.15 GHz | 4.22 GHz | |
Overclocked clock speed (Water) | 4.25 GHz | 4.23 GHz | |
Overclocked clock speed (Air) | 4.15 GHz | 4.22 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 Q9650 ![]() | Intel Core2 Duo E8400 ![]() |
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