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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core2 Quad Q8400 @ 2.66GHz vs Intel Core2 Quad Q6600 @ 2.40GHz

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

×Intel Core2 Quad Q8400 @ 2.66GHz×Intel Core2 Quad Q6600 @ 2.40GHz+ ADD
Price$239.951$39.981
Socket TypeLGA775LGA775
CPU ClassDesktopDesktop
Clockspeed2.7 GHz2.4 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores44
Max TDP95W105W
Yearly Running Cost$17.34$19.16
First Seen on ChartQ2 2009Q4 2008
# of Samples13866956
Single Thread Rating1120924
CPU Mark31622946

CPU Mark Rating
As of 24th of January 2020 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
3,162
Intel Core2 Quad Q6600 @ 2.40GHz
2,946
CPU Value (CPU Mark / $Price)
As of 24th of January 2020 - Higher results represent better value
Intel Core2 Quad Q8400 @ 2.66GHz
13.18
Intel Core2 Quad Q6600 @ 2.40GHz
73.70
CPU Single Thread Rating
As of 24th of January 2020 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
1,120
Intel Core2 Quad Q6600 @ 2.40GHz
924

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 Q8400 @ 2.66GHzIntel Core2 Quad Q6600 @ 2.40GHz
Max TDP95W105W
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.