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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$69.05
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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 Samples181617
Cross-Platform Rating04579
Single Thread Rating13581220
CPU Mark25422121

CPU Mark Rating
As of 8th of July 2020 - Higher results represent better performance
AMD Phenom II X4 B65
2,542
AMD Athlon II X4 640
2,121
CPU Value (CPU Mark / $Price)
As of 8th of July 2020 - Higher results represent better value
AMD Phenom II X4 B65
NA
AMD Athlon II X4 640
30.71
CPU Single Thread Rating
As of 8th of July 2020 - Higher results represent better performance
AMD Phenom II X4 B65
1,358
AMD Athlon II X4 640
1,220

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)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.