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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

CPU Performance Comparison

Performance of selected CPUs can be found below. The values for the CPU are determined from thousands of PerformanceTest benchmark results and is updated daily.


×Intel Core2 Extreme X9775 @ 3.20GHz×Intel Core2 Quad Q9550 @ 2.83GHz+ ADD
Price$1805.951$44.491
Socket TypeLGA771LGA775
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores44
Max TDP150W95W
Yearly Running Cost$27.38$17.34
First Seen on ChartQ1 2009Q4 2008
# of Samples43475
Single Thread Rating13911197
CPU Mark46463962

CPU Mark Rating
As of 5th of December 2019 - Higher results represent better performance
Intel Core2 Extreme X9775 @ 3.20GHz
 4,646
Intel Core2 Quad Q9550 @ 2.83GHz
 3,962
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 5th of December 2019 - Higher results represent better value
Intel Core2 Extreme X9775 @ 3.20GHz
 2.57
Intel Core2 Quad Q9550 @ 2.83GHz
 89.06
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 5th of December 2019 - Higher results represent better performance
Intel Core2 Extreme X9775 @ 3.20GHz
 1,391
Intel Core2 Quad Q9550 @ 2.83GHz
 1,197
PassMark Software © 2008-2019

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 Extreme X9775 @ 3.20GHzIntel Core2 Quad Q9550 @ 2.83GHz
Max TDP150W95W
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.