Over 1,000,000 CPUs benchmarked
The Intel Core2 Quad Q9400 @ 2.66GHz is newer than Intel Core2 Extreme X9650 @ 3.00GHz and is around -10% slower in multi-threaded (CPU Mark) testing. The Intel Core2 Quad Q9400 @ 2.66GHz is around -9% slower in single-thread testing. Also, Intel Core2 Extreme X9650 @ 3.00GHz uses around 31% more power. All the CPUs in this comparison belong in the Desktop CPU Class. The values below were tabulated from a combined 2885 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.
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×Intel Core2 Extreme X9650 @ 3.00GHz | ×Intel Core2 Quad Q9400 @ 2.66GHz | + ADD | |
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Socket Type | LGA775 | LGA775 | |
CPU Class | Desktop | Desktop | |
Clockspeed | 3.0 GHz | 2.7 GHz | |
Turbo Speed | Not Supported | Not Supported | |
# of Physical Cores | 4 (Threads: 4) | 4 (Threads: 4) | |
Cache | L1: 256KB, L2: 12.0MB, L3: 0MB | L1: 256KB, L2: 6.0MB, L3: 0MB | |
TDP | 130W | 95W | |
Yearly Running Cost | $23.73 | $17.34 | |
Other | |||
First Seen on Chart | Q4 2008 | Q4 2008 | |
# of Samples | 354 | 2531 | |
CPU Value | 2.8 | 86.0 | |
Single Thread Rating(% diff. to max in group) | 1254(0.0%) | 1139(-9.1%) | |
CPU Mark(% diff. to max in group) | 2381(0.0%) | 2154(-9.5%) |
Intel Core2 Extreme X9650 @ 3.00GHz | 2,381 | |
Intel Core2 Quad Q9400 @ 2.66GHz | 2,154 | |
PassMark Software © 2008-2025 |
Intel Core2 Extreme X9650 @ 3.00GHz | 2.8 | |
Intel Core2 Quad Q9400 @ 2.66GHz | 86.0 | |
PassMark Software © 2008-2025 |
Intel Core2 Extreme X9650 @ 3.00GHz | 1,254 | |
Intel Core2 Quad Q9400 @ 2.66GHz | 1,139 | |
PassMark Software © 2008-2025 |
Intel Core2 Extreme X9650 @ 3.00GHz | Intel Core2 Quad Q9400 @ 2.66GHz | |
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Max TDP | 130W | 95W |
Power consumption per day (kWh) | NA | NA |
Running cost per day | NA | NA |
Power consumption per year (kWh) | NA | NA |
Running cost per year | NA | NA |