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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 B65 vs AMD Athlon II X4 645

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

×AMD Phenom II X4 B65×AMD Athlon II X4 645+ ADD
PriceSearch Online$28.85
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Socket TypeAM2+/AM3AM3
CPU ClassDesktopDesktop
Clockspeed3.4 GHz3.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ1 2011Q4 2010
# of Samples18568
Cross-Platform Rating04676
Single Thread Rating13571256
CPU Mark25762223

CPU Mark Rating
As of 17th of October 2021 - Higher results represent better performance
AMD Phenom II X4 B65
2,576
AMD Athlon II X4 645
2,223
CPU Value (CPU Mark / $Price)
As of 17th of October 2021 - Higher results represent better value
AMD Phenom II X4 B65
NA
AMD Athlon II X4 645
77.05
CPU Single Thread Rating
As of 17th of October 2021 - Higher results represent better performance
AMD Phenom II X4 B65
1,357
AMD Athlon II X4 645
1,256

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 Phenom II X4 B65AMD Athlon II X4 645
Max TDPNA95W
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.