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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 Phenom II X4 840
PriceSearch Online$89.951
Socket TypeAM2+/AM3AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.4 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores44
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ1 2011Q1 2011
# of Samples18638
Single Thread Rating11841099
CPU Mark41723509
CPU Mark Rating
As of 22nd of October 2019 - Higher results represent better performance
AMD Phenom II X4 B65
4,172
AMD Phenom II X4 840
3,509
CPU Value (CPU Mark / $Price)
As of 22nd of October 2019 - Higher results represent better value
AMD Phenom II X4 B65
NA
AMD Phenom II X4 840
39.01
CPU Single Thread Rating
As of 22nd of October 2019 - Higher results represent better performance
AMD Phenom II X4 B65
1,184
AMD Phenom II X4 840
1,099

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 Phenom II X4 840
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.