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AMD Athlon II X4 650 vs Intel Core2 Quad Q8400

The AMD Athlon II X4 650 is newer than Intel Core2 Quad Q8400 @ 2.66GHz also around 15% faster in multi-threaded (CPU Mark) testing, it 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 1706 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 650×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
Price Search Online Search Online
Socket TypeNA2LGA775
CPU ClassDesktopDesktop
Clockspeed3.2 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
CacheL1: 512KB, L2: 2.0MB, L1: 256KB, L2: 4.0MB, L3: 0MB
TDP95W95W
Yearly Running Cost$17.34$17.34
Other
First Seen on ChartQ3 2011Q2 2009
# of Samples671639
CPU Value14.616.0
Single Thread Rating(% diff. to max in group)1305(0.0%)1142(-12.5%)
CPU Mark(% diff. to max in group)2426(0.0%)2067(-14.8%)
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
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CPU Mark Rating
As of 21st of November 2024 - Higher results represent better performance
AMD Athlon II X4 650
2,426
Intel Core2 Quad Q8400 @ 2.66GHz
2,067
PassMark Software © 2008-2024
CPU Value (CPU Mark / $Price)
As of 21st of November 2024 - Higher results represent better value
AMD Athlon II X4 650
14.6
Intel Core2 Quad Q8400 @ 2.66GHz
16.0
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of November 2024 - Higher results represent better performance
AMD Athlon II X4 650
1,305
Intel Core2 Quad Q8400 @ 2.66GHz
1,142
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.
AMD Athlon II X4 650 Intel Core2 Quad Q8400 @ 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.