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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Athlon II X3 450 vs Intel Core2 Quad Q6600 @ 2.40GHz vs Intel Core2 Quad Q8400 @ 2.66GHz vs AMD Athlon II X4 650 vs Intel Core i3-540 @ 3.07GHz

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

×AMD Athlon II X3 450×Intel Core2 Quad Q6600 @ 2.40GHz×Intel Core2 Quad Q8400 @ 2.66GHz×AMD Athlon II X4 650×Intel Core i3-540 @ 3.07GHz
Price$39.99
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$58.99
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$128.881$166.61$25.99
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Socket TypeAM3LGA775LGA775NA2LGA1156
CPU ClassDesktopDesktopDesktopNA2Desktop
Clockspeed3.2 GHz2.4 GHz2.7 GHz3.2 GHz3.1 GHz
Turbo SpeedNot SupportedNot SupportedNot SupportedNot SupportedNot Supported
# of Physical Cores3 (Threads: 3)4 (Threads: 4)4 (Threads: 4)4 (Threads: 4)2 (Threads: 4)
Max TDP95W105W95W95W73W
Yearly Running Cost$17.34$19.16$17.34$17.34$13.32
First Seen on ChartQ4 2010Q4 2008Q2 2009Q2 2011Q1 2010
# of Samples55871861489611398
Cross-Platform Rating37734595469749694415
Single Thread Rating1287957115313271274
CPU Mark17561770201023901503
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 30th of July 2021 - Higher results represent better performance
AMD Athlon II X3 450
1,756
Intel Core2 Quad Q6600 @ 2.40GHz
1,770
Intel Core2 Quad Q8400 @ 2.66GHz
2,010
AMD Athlon II X4 650
2,390
Intel Core i3-540 @ 3.07GHz
1,503
CPU Value (CPU Mark / $Price)
As of 30th of July 2021 - Higher results represent better value
AMD Athlon II X3 450
43.91
Intel Core2 Quad Q6600 @ 2.40GHz
30.01
Intel Core2 Quad Q8400 @ 2.66GHz
15.60
AMD Athlon II X4 650
14.34
Intel Core i3-540 @ 3.07GHz
57.81
CPU Single Thread Rating
As of 30th of July 2021 - Higher results represent better performance
AMD Athlon II X3 450
1,287
Intel Core2 Quad Q6600 @ 2.40GHz
957
Intel Core2 Quad Q8400 @ 2.66GHz
1,153
AMD Athlon II X4 650
1,327
Intel Core i3-540 @ 3.07GHz
1,274

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 450Intel Core2 Quad Q6600 @ 2.40GHzIntel Core2 Quad Q8400 @ 2.66GHzAMD Athlon II X4 650Intel Core i3-540 @ 3.07GHz
Max TDP95W105W95W95W73W
Power consumption per day (kWh)NANANANANA
Running cost per dayNANANANANA
Power consumption per year (kWh)NANANANANA
Running cost per yearNANANANANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.