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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 B55 vs AMD Phenom II X4 820

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

×AMD Phenom II X4 B55×AMD Phenom II X4 820+ ADD
PriceSearch Online$64.951
Socket TypeAM2+/AM3AM3
CPU ClassDesktopDesktop
Clockspeed3.3 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ1 2010Q4 2009
# of Samples527212
Cross-Platform Rating58614883
Single Thread Rating13381125
CPU Mark24052034
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 26th of September 2020 - Higher results represent better performance
AMD Phenom II X4 B55
2,405
AMD Phenom II X4 820
2,034
CPU Value (CPU Mark / $Price)
As of 26th of September 2020 - Higher results represent better value
AMD Phenom II X4 B55
NA
AMD Phenom II X4 820
31.32
CPU Single Thread Rating
As of 26th of September 2020 - Higher results represent better performance
AMD Phenom II X4 B55
1,338
AMD Phenom II X4 820
1,125

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 B55AMD Phenom II X4 820
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.