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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Athlon II X3 405e vs AMD Athlon II X2 255

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

×AMD Athlon II X3 405e×AMD Athlon II X2 255+ ADD
Price$79.991$91.441
Socket TypeAM3AM3
CPU ClassDesktopDesktop
Clockspeed2.3 GHz3.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores3 (Threads: 3)2 (Threads: 2)
Max TDP45W65W
Yearly Running Cost$8.21$11.86
First Seen on ChartQ1 2010Q1 2010
# of Samples11391
Cross-Platform Rating02578
Single Thread Rating97312483
CPU Mark13311137
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 18th of April 2021 - Higher results represent better performance
AMD Athlon II X3 405e
1,331
AMD Athlon II X2 255
1,137
CPU Value (CPU Mark / $Price)
As of 18th of April 2021 - Higher results represent better value
AMD Athlon II X3 405e
16.64
AMD Athlon II X2 255
12.43
CPU Single Thread Rating
As of 18th of April 2021 - Higher results represent better performance
AMD Athlon II X3 405e
973
AMD Athlon II X2 255
1,248

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 X3 405eAMD Athlon II X2 255
Max TDP45W65W
Power consumption per day (kWh)NANA
Running cost per dayNANA
Power consumption per year (kWh)NANA
Running cost per yearNANA
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.