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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Athlon II X4 645 vs AMD Athlon II X3 450

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

×AMD Athlon II X4 645×AMD Athlon II X3 450+ ADD
Price$28.85
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$28.02
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Socket TypeAM3AM3
CPU ClassDesktopDesktop
Clockspeed3.1 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)3 (Threads: 3)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ4 2010Q4 2010
# of Samples568561
Cross-Platform Rating46763777
Single Thread Rating12561290
CPU Mark22231758

CPU Mark Rating
As of 25th of October 2021 - Higher results represent better performance
AMD Athlon II X4 645
2,223
AMD Athlon II X3 450
1,758
CPU Value (CPU Mark / $Price)
As of 25th of October 2021 - Higher results represent better value
AMD Athlon II X4 645
77.05
AMD Athlon II X3 450
62.74
CPU Single Thread Rating
As of 25th of October 2021 - Higher results represent better performance
AMD Athlon II X4 645
1,256
AMD Athlon II X3 450
1,290

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 Athlon II X3 450
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.