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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 940 vs Intel Core2 Quad Q9400 @ 2.66GHz

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

×AMD Phenom II X4 940×Intel Core2 Quad Q9400 @ 2.66GHz+ ADD
Price$8901$38.03
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Socket TypeAM2+LGA775
CPU ClassDesktopDesktop
Clockspeed3.0 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDP125W95W
Yearly Running Cost$22.81$17.34
First Seen on ChartQ1 2009Q4 2008
# of Samples5822271
Cross-Platform Rating54125232
Single Thread Rating12071139
CPU Mark22192043
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 27th of September 2021 - Higher results represent better performance
AMD Phenom II X4 940
2,219
Intel Core2 Quad Q9400 @ 2.66GHz
2,043
CPU Value (CPU Mark / $Price)
As of 27th of September 2021 - Higher results represent better value
AMD Phenom II X4 940
2.49
Intel Core2 Quad Q9400 @ 2.66GHz
53.73
CPU Single Thread Rating
As of 27th of September 2021 - Higher results represent better performance
AMD Phenom II X4 940
1,207
Intel Core2 Quad Q9400 @ 2.66GHz
1,139

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 940Intel Core2 Quad Q9400 @ 2.66GHz
Max TDP125W95W
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.