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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 Phenom II X4 B65AMD Athlon II X4 645
PriceSearch Online$49.991
Socket TypeAM2+/AM3AM3
CPU ClassDesktopDesktop
Clockspeed3.4 GHz3.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores44
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ1 2011Q4 2010
# of Samples18532
Single Thread Rating11841071
CPU Mark41723466
CPU Mark Rating
As of 22nd of October 2019 - Higher results represent better performance
AMD Phenom II X4 B65
4,172
AMD Athlon II X4 645
3,466
CPU Value (CPU Mark / $Price)
As of 22nd of October 2019 - Higher results represent better value
AMD Phenom II X4 B65
NA
AMD Athlon II X4 645
69.34
CPU Single Thread Rating
As of 22nd of October 2019 - Higher results represent better performance
AMD Phenom II X4 B65
1,184
AMD Athlon II X4 645
1,071

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)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.