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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core2 Quad Q8400 @ 2.66GHz vs Intel Core2 Quad Q9505 @ 2.83GHz

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 Q9505 @ 2.83GHz+ ADD
Price$128.881$1901
Socket TypeLGA775LGA775
CPU ClassDesktopDesktop
Clockspeed2.7 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ2 2009Q4 2009
# of Samples1469176
Cross-Platform Rating47355215
Single Thread Rating11511194
CPU Mark20112053
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 28th of February 2021 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
2,011
Intel Core2 Quad Q9505 @ 2.83GHz
2,053
CPU Value (CPU Mark / $Price)
As of 28th of February 2021 - Higher results represent better value
Intel Core2 Quad Q8400 @ 2.66GHz
15.61
Intel Core2 Quad Q9505 @ 2.83GHz
10.81
CPU Single Thread Rating
As of 28th of February 2021 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
1,151
Intel Core2 Quad Q9505 @ 2.83GHz
1,194

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 Q9505 @ 2.83GHz
Max TDP95W95W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.