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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X3 720 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 II X3 720×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
Price$109.551$128.881
Socket TypeAM3LGA775
CPU ClassDesktopDesktop
Clockspeed2.8 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores3 (Threads: 3)4 (Threads: 4)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ1 2009Q2 2009
# of Samples3731480
Cross-Platform Rating37344741
Single Thread Rating11211153
CPU Mark15732017
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 17th of May 2021 - Higher results represent better performance
AMD Phenom II X3 720
1,573
Intel Core2 Quad Q8400 @ 2.66GHz
2,017
CPU Value (CPU Mark / $Price)
As of 17th of May 2021 - Higher results represent better value
AMD Phenom II X3 720
14.36
Intel Core2 Quad Q8400 @ 2.66GHz
15.65
CPU Single Thread Rating
As of 17th of May 2021 - Higher results represent better performance
AMD Phenom II X3 720
1,121
Intel Core2 Quad Q8400 @ 2.66GHz
1,153

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 X3 720Intel Core2 Quad Q8400 @ 2.66GHz
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.