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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core2 Quad Q9550 @ 2.83GHz vs Intel Core2 Quad Q9400 @ 2.66GHz

The values for the CPUs below are determined from thousands of PerformanceTest benchmark results and are updated daily.

×Intel Core2 Quad Q9550 @ 2.83GHz×Intel Core2 Quad Q9400 @ 2.66GHz+ ADD
Price$44.491$48.031
Socket TypeLGA775LGA775
CPU ClassDesktopDesktop
Clockspeed2.8 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores44
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ4 2008Q4 2008
# of Samples35332109
Single Thread Rating11961127
CPU Mark39593336

CPU Mark Rating
As of 25th of February 2020 - Higher results represent better performance
Intel Core2 Quad Q9550 @ 2.83GHz
3,959
Intel Core2 Quad Q9400 @ 2.66GHz
3,336
CPU Value (CPU Mark / $Price)
As of 25th of February 2020 - Higher results represent better value
Intel Core2 Quad Q9550 @ 2.83GHz
89.01
Intel Core2 Quad Q9400 @ 2.66GHz
69.47
CPU Single Thread Rating
As of 25th of February 2020 - Higher results represent better performance
Intel Core2 Quad Q9550 @ 2.83GHz
1,196
Intel Core2 Quad Q9400 @ 2.66GHz
1,127

Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per dayAverage CPU Utilization (0-100%)1Power cost, $ per kWh2
1Average user usage is typically low and can vary from task to task. An estimate load 25% is nominal.
2Typical power costs vary around the world. Check your last power bill for details. Values of $0.15 to $0.45 per kWh are typical.
Intel Core2 Quad Q9550 @ 2.83GHzIntel Core2 Quad Q9400 @ 2.66GHz
Max TDP95W95W
Power consumption per day (kWh)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
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Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.