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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.

×AMD Athlon II X4 645×AMD Phenom II X4 B97+ ADD
Price$79.95 BUY NOW!$56.991
Socket TypeAM3AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.1 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores44
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ4 2010Q2 2010
# of Samples53488
Single Thread Rating10711105
CPU Mark34653868

CPU Mark Rating
As of 7th of December 2019 - Higher results represent better performance
AMD Athlon II X4 645
3,465
AMD Phenom II X4 B97
3,868
CPU Value (CPU Mark / $Price)
As of 7th of December 2019 - Higher results represent better value
AMD Athlon II X4 645
43.35
AMD Phenom II X4 B97
67.87
CPU Single Thread Rating
As of 7th of December 2019 - Higher results represent better performance
AMD Athlon II X4 645
1,071
AMD Phenom II X4 B97
1,105

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 X4 645AMD Phenom II X4 B97
Max TDP95W95W
Power consumption per day (kWh)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
Running cost per yearabcabc
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.