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Intel Core2 Quad Q9400 vs AMD Athlon II X3 450

The AMD Athlon II X3 450 is newer than Intel Core2 Quad Q9400 @ 2.66GHz, while Intel Core2 Quad Q9400 @ 2.66GHz is around 13% faster in multi-threaded (CPU Mark) testing, but AMD Athlon II X3 450 is around 13% faster in single-thread testing. Both CPUs operates at simliar power levels (TDP). All the CPUs in this comparison belong in the Desktop CPU Class.The values below were tabulated from a combined 3069 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • 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 X3 450+ ADD
Price Search Online $25.95 - BUY
Socket TypeLGA775AM3
CPU ClassDesktopDesktop
Clockspeed2.7 GHz3.2 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)3 (Threads: 3)
CacheL1: 256KB, L2: 6.0MB, L3: 0MBL1: 384KB, L2: 1.5MB,
TDP95W95W
Yearly Running Cost$17.34$17.34
Other
First Seen on ChartQ4 2008Q4 2010
# of Samples2477592
CPU Value85.471.6
Single Thread Rating(% diff. to max in group)1138(-12.6%)1302(0.0%)
CPU Mark(% diff. to max in group)2138(0.0%)1858(-13.1%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 22nd of December 2024 - Higher results represent better performance
Intel Core2 Quad Q9400 @ 2.66GHz
2,138
AMD Athlon II X3 450
1,858
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 22nd of December 2024 - Higher results represent better value
Intel Core2 Quad Q9400 @ 2.66GHz
85.4
AMD Athlon II X3 450
71.6
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 22nd of December 2024 - Higher results represent better performance
Intel Core2 Quad Q9400 @ 2.66GHz
1,138
AMD Athlon II X3 450
1,302
PassMark Software © 2008-2024
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
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 @ 2.66GHz AMD Athlon II X3 450
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.