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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Athlon II X4 645 vs Intel Core2 Quad Q9450 @ 2.66GHz

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

×AMD Athlon II X4 645×Intel Core2 Quad Q9450 @ 2.66GHz+ ADD
Price$28.85
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$35.71
Socket TypeAM3LGA775
CPU ClassDesktopDesktop
Clockspeed3.1 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 2010Q4 2008
# of Samples568773
Cross-Platform Rating46766485
Single Thread Rating12561140
CPU Mark22232082
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 18th of October 2021 - Higher results represent better performance
AMD Athlon II X4 645
2,223
Intel Core2 Quad Q9450 @ 2.66GHz
2,082
CPU Value (CPU Mark / $Price)
As of 18th of October 2021 - Higher results represent better value
AMD Athlon II X4 645
77.05
Intel Core2 Quad Q9450 @ 2.66GHz
58.31
CPU Single Thread Rating
As of 18th of October 2021 - Higher results represent better performance
AMD Athlon II X4 645
1,256
Intel Core2 Quad Q9450 @ 2.66GHz
1,140

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 Athlon II X4 645Intel Core2 Quad Q9450 @ 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.