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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core2 Quad Q9400 @ 2.66GHz vs AMD Athlon II X4 645

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

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.
×Intel Core2 Quad Q9400 @ 2.66GHz×AMD Athlon II X4 645+ ADD
Price$38.031$14.11
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Socket TypeLGA775AM3
CPU ClassDesktopDesktop
Clockspeed2.7 GHz3.1 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 256KB, L2: 6.0MB, L3: 0MBL1: 512KB, L2: 2.0MB,
Max TDP95W95W
Yearly Running Cost$17.34$17.34
Other
First Seen on ChartQ4 2008Q4 2010
# of Samples2363591
Single Thread Rating(% diff. to max in group)1138(-10.2%)1267(0.0%)
CPU Mark(% diff. to max in group)2083(-11.1%)2344(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 9th of December 2022 - Higher results represent better performance
Intel Core2 Quad Q9400 @ 2.66GHz
2,083
AMD Athlon II X4 645
2,344
CPU Value (CPU Mark / $Price)
As of 9th of December 2022 - Higher results represent better value
Intel Core2 Quad Q9400 @ 2.66GHz
54.77
AMD Athlon II X4 645
166.14
CPU Single Thread Rating
As of 9th of December 2022 - Higher results represent better performance
Intel Core2 Quad Q9400 @ 2.66GHz
1,138
AMD Athlon II X4 645
1,267

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 Athlon II X4 645
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.