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AMD Athlon II X4 640 vs Intel Core2 Quad Q9650

The AMD Athlon II X4 640 is newer than Intel Core2 Quad Q9650 @ 3.00GHz and is around -10% slower in multi-threaded (CPU Mark) testing. The AMD Athlon II X4 640 is around -6% slower 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 3715 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.

×AMD Athlon II X4 640×Intel Core2 Quad Q9650 @ 3.00GHz+ ADD
Price Search Online Search Online
Socket TypeAM3LGA775
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.0 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 512KB, L2: 2.0MB, L3: 6MBL1: 256KB, L2: 12.0MB, L3: 0MB
TDP95W95W
Yearly Running Cost$17.34$17.34
Other
First Seen on ChartQ2 2010Q4 2008
# of Samples18451870
CPU Rank34163257
CPU Value33.413.2
Single Thread Rating(% diff. to max in group)1213(-5.6%)1285(0.0%)
CPU Mark(% diff. to max in group)2275(-9.6%)2516(0.0%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 10th of February 2026 - Higher results represent better performance
AMD Athlon II X4 640
2,275
Intel Core2 Quad Q9650 @ 3.00GHz
2,516
PassMark Software © 2008-2026
CPU Value (CPU Mark / $Price)
As of 10th of February 2026 - Higher results represent better value
AMD Athlon II X4 640
33.4
Intel Core2 Quad Q9650 @ 3.00GHz
13.2
PassMark Software © 2008-2026
CPU Single Thread Rating
As of 10th of February 2026 - Higher results represent better performance
AMD Athlon II X4 640
1,213
Intel Core2 Quad Q9650 @ 3.00GHz
1,285
PassMark Software © 2008-2026
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.
AMD Athlon II X4 640 Intel Core2 Quad Q9650 @ 3.00GHz
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.