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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 FX-4100 Quad-Core
PriceSearch Online$153.451
Socket TypeAM2+/AM3AM3+
CPU ClassDesktopDesktop
Clockspeed3.4 GHz3.6 GHz
Turbo SpeedNot SupportedUp to 3.8 GHz
# of Physical Cores42 (2 logical cores per physical)
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ1 2011Q4 2011
# of Samples182115
Single Thread Rating11841221
CPU Mark41724074
CPU Mark Rating
As of 18th of October 2019 - Higher results represent better performance
AMD Phenom II X4 B65
 4,172
AMD FX-4100 Quad-Core
 4,074
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 18th of October 2019 - Higher results represent better value
AMD Phenom II X4 B65
 NA
AMD FX-4100 Quad-Core
 26.55
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 18th of October 2019 - Higher results represent better performance
AMD Phenom II X4 B65
 1,184
AMD FX-4100 Quad-Core
 1,221
PassMark Software © 2008-2019

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 FX-4100 Quad-Core
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.