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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Athlon II X3 455 vs Intel Core2 Quad Q8400 @ 2.66GHz

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


×AMD Athlon II X3 455×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
Price$139.95
BUY NOW!		$128.881
Socket TypeAM3LGA775
CPU ClassDesktopDesktop
Clockspeed3.3 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores3 (Threads: 3)4 (Threads: 4)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ4 2010Q2 2009
# of Samples3561478
Cross-Platform Rating38104747
Single Thread Rating13481153
CPU Mark18202018
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 22nd of April 2021 - Higher results represent better performance
AMD Athlon II X3 455
 1,820
Intel Core2 Quad Q8400 @ 2.66GHz
 2,018
PassMark Software © 2008-2021
CPU Value (CPU Mark / $Price)
As of 22nd of April 2021 - Higher results represent better value
AMD Athlon II X3 455
 13.01
Intel Core2 Quad Q8400 @ 2.66GHz
 15.66
PassMark Software © 2008-2021
CPU Single Thread Rating
As of 22nd of April 2021 - Higher results represent better performance
AMD Athlon II X3 455
 1,348
Intel Core2 Quad Q8400 @ 2.66GHz
 1,153
PassMark Software © 2008-2021

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.
AMD Athlon II X3 455Intel Core2 Quad Q8400 @ 2.66GHz
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.