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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 B65 vs AMD Athlon II X4 640

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 640+ ADD
PriceSearch Online$13.55
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Socket TypeAM2+/AM3AM3
CPU ClassDesktopDesktop
Clockspeed3.4 GHz3.0 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ1 2011Q2 2010
# of Samples181667
Cross-Platform Rating04617
Single Thread Rating13571208
CPU Mark25762142

CPU Mark Rating
As of 27th of October 2021 - Higher results represent better performance
AMD Phenom II X4 B65
2,576
AMD Athlon II X4 640
2,142
CPU Value (CPU Mark / $Price)
As of 27th of October 2021 - Higher results represent better value
AMD Phenom II X4 B65
NA
AMD Athlon II X4 640
158.08
CPU Single Thread Rating
As of 27th of October 2021 - Higher results represent better performance
AMD Phenom II X4 B65
1,357
AMD Athlon II X4 640
1,208

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 640
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.