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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 B65 vs AMD Phenom II X4 840

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


×AMD Phenom II X4 B65×AMD Phenom II X4 840+ ADD
PriceSearch Online$79.95
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Socket TypeAM2+/AM3AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.4 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ1 2011Q1 2011
# of Samples18664
Cross-Platform Rating04963
Single Thread Rating13581273
CPU Mark25422274

CPU Mark Rating
As of 8th of July 2020 - Higher results represent better performance
AMD Phenom II X4 B65
 2,542
AMD Phenom II X4 840
 2,274
PassMark Software © 2008-2020
CPU Value (CPU Mark / $Price)
As of 8th of July 2020 - Higher results represent better value
AMD Phenom II X4 B65
 NA
AMD Phenom II X4 840
 28.44
PassMark Software © 2008-2020
CPU Single Thread Rating
As of 8th of July 2020 - Higher results represent better performance
AMD Phenom II X4 B65
 1,358
AMD Phenom II X4 840
 1,273
PassMark Software © 2008-2020

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.