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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 Athlon II X2 B28Intel Pentium G640 @ 2.80GHz
Price$49.051$1501
Socket TypeAM3LGA1155
CPU ClassDesktopDesktop
Clockspeed3.4 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores22
Max TDP65W65W
Yearly Running Cost$11.86$11.86
First Seen on ChartQ2 2012Q2 2012
# of Samples43187
Single Thread Rating11711450
CPU Mark20852519
CPU Mark Rating
As of 17th of October 2019 - Higher results represent better performance
AMD Athlon II X2 B28
 2,085
Intel Pentium G640 @ 2.80GHz
 2,519
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 17th of October 2019 - Higher results represent better value
AMD Athlon II X2 B28
 42.52
Intel Pentium G640 @ 2.80GHz
 16.80
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 17th of October 2019 - Higher results represent better performance
AMD Athlon II X2 B28
 1,171
Intel Pentium G640 @ 2.80GHz
 1,450
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 Athlon II X2 B28Intel Pentium G640 @ 2.80GHz
Max TDP65W65W
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.