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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom 9550 Quad-Core vs Intel Core2 Quad Q8400 @ 2.66GHz

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

×AMD Phenom 9550 Quad-Core×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
Price$17.951$21.241
Socket TypeAM2+LGA775
CPU ClassDesktopDesktop
Clockspeed2.2 GHz2.7 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 2008Q2 2009
# of Samples4651421
Cross-Platform Rating39924862
Single Thread Rating8921156
CPU Mark16682031
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 28th of May 2020 - Higher results represent better performance
AMD Phenom 9550 Quad-Core
1,668
Intel Core2 Quad Q8400 @ 2.66GHz
2,031
CPU Value (CPU Mark / $Price)
As of 28th of May 2020 - Higher results represent better value
AMD Phenom 9550 Quad-Core
92.91
Intel Core2 Quad Q8400 @ 2.66GHz
95.62
CPU Single Thread Rating
As of 28th of May 2020 - Higher results represent better performance
AMD Phenom 9550 Quad-Core
892
Intel Core2 Quad Q8400 @ 2.66GHz
1,156

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 9550 Quad-CoreIntel Core2 Quad Q8400 @ 2.66GHz
Max TDP95W95W
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.