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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 820 vs Intel Core2 Quad Q9550 @ 2.83GHz

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

×AMD Phenom II X4 820×Intel Core2 Quad Q9550 @ 2.83GHz+ ADD
Price$291$325
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Socket TypeAM3LGA775
CPU ClassDesktopDesktop
Clockspeed2.8 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ4 2009Q4 2008
# of Samples2173788
Cross-Platform Rating50856963
Single Thread Rating11371226
CPU Mark21082270
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 16th of October 2021 - Higher results represent better performance
AMD Phenom II X4 820
2,108
Intel Core2 Quad Q9550 @ 2.83GHz
2,270
CPU Value (CPU Mark / $Price)
As of 16th of October 2021 - Higher results represent better value
AMD Phenom II X4 820
72.68
Intel Core2 Quad Q9550 @ 2.83GHz
6.99
CPU Single Thread Rating
As of 16th of October 2021 - Higher results represent better performance
AMD Phenom II X4 820
1,137
Intel Core2 Quad Q9550 @ 2.83GHz
1,226

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 820Intel Core2 Quad Q9550 @ 2.83GHz
Max TDP95W95W
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.