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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core2 Quad Q9400 @ 2.66GHz vs AMD Phenom II X3 720

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

×Intel Core2 Quad Q9400 @ 2.66GHz×AMD Phenom II X3 720+ ADD
Price$531$64.451
Socket TypeLGA775AM3
CPU ClassDesktopDesktop
Clockspeed2.7 GHz2.8 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)3 (Threads: 3)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ4 2008Q1 2009
# of Samples2280375
Single Thread Rating11411115
CPU Mark20471539
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 6th of December 2021 - Higher results represent better performance
Intel Core2 Quad Q9400 @ 2.66GHz
2,047
AMD Phenom II X3 720
1,539
CPU Value (CPU Mark / $Price)
As of 6th of December 2021 - Higher results represent better value
Intel Core2 Quad Q9400 @ 2.66GHz
38.61
AMD Phenom II X3 720
23.88
CPU Single Thread Rating
As of 6th of December 2021 - Higher results represent better performance
Intel Core2 Quad Q9400 @ 2.66GHz
1,141
AMD Phenom II X3 720
1,115

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.
Intel Core2 Quad Q9400 @ 2.66GHzAMD Phenom II X3 720
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.