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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 820 vs AMD Phenom II X4 955

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

×AMD Phenom II X4 820×AMD Phenom II X4 955+ ADD
Price$74.951$49.95 BUY NOW!
Socket TypeAM3AM3
CPU ClassDesktopDesktop
Clockspeed2.8 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDP95W125W
Yearly Running Cost$17.34$22.81
First Seen on ChartQ4 2009Q1 2009
# of Samples2113679
Cross-Platform Rating51375918
Single Thread Rating11371303
CPU Mark21002420

CPU Mark Rating
As of 24th of May 2020 - Higher results represent better performance
AMD Phenom II X4 820
2,100
AMD Phenom II X4 955
2,420
CPU Value (CPU Mark / $Price)
As of 24th of May 2020 - Higher results represent better value
AMD Phenom II X4 820
28.02
AMD Phenom II X4 955
48.44
CPU Single Thread Rating
As of 24th of May 2020 - Higher results represent better performance
AMD Phenom II X4 820
1,137
AMD Phenom II X4 955
1,303

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 820AMD Phenom II X4 955
Max TDP95W125W
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.