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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X2 B55 vs AMD Phenom II X2 550

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

×AMD Phenom II X2 B55×AMD Phenom II X2 550+ ADD
Price$47.951$17.95
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Socket TypeAM3AM2+/AM3
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores2 (Threads: 2)2 (Threads: 2)
Max TDP80W80W
Yearly Running Cost$14.60$14.60
First Seen on ChartQ4 2009Q2 2009
# of Samples59428
Cross-Platform Rating31253076
Single Thread Rating1249312213
CPU Mark12011201
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 31st of May 2020 - Higher results represent better performance
AMD Phenom II X2 B55
1,201
AMD Phenom II X2 550
1,201
CPU Value (CPU Mark / $Price)
As of 31st of May 2020 - Higher results represent better value
AMD Phenom II X2 B55
25.04
AMD Phenom II X2 550
66.91
CPU Single Thread Rating
As of 31st of May 2020 - Higher results represent better performance
AMD Phenom II X2 B55
1,249
AMD Phenom II X2 550
1,221

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 X2 B55AMD Phenom II X2 550
Max TDP80W80W
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.