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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 820 vs AMD Phenom II X4 945

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 945+ ADD
Price$291$31.85
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Socket TypeAM3AM3
CPU ClassDesktopDesktop
Clockspeed2.8 GHz3.0 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 2009Q2 2009
# of Samples2171526
Cross-Platform Rating50855473
Single Thread Rating11371230
CPU Mark21082240
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 19th of October 2021 - Higher results represent better performance
AMD Phenom II X4 820
2,108
AMD Phenom II X4 945
2,240
CPU Value (CPU Mark / $Price)
As of 19th of October 2021 - Higher results represent better value
AMD Phenom II X4 820
72.68
AMD Phenom II X4 945
70.34
CPU Single Thread Rating
As of 19th of October 2021 - Higher results represent better performance
AMD Phenom II X4 820
1,137
AMD Phenom II X4 945
1,230

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 945
Max TDP95W125W
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.