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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core2 Quad Q8400 @ 2.66GHz vs AMD FX-4100 Quad-Core

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


×Intel Core2 Quad Q8400 @ 2.66GHz×AMD FX-4100 Quad-Core+ ADD
Price$128.881$39.381
Socket TypeLGA775AM3+
CPU ClassDesktopDesktop
Clockspeed2.7 GHz3.6 GHz
Turbo SpeedNot SupportedUp to 3.8 GHz
# of Physical Cores4 (Threads: 4)4 (in 2 physical modules)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ2 2009Q4 2011
# of Samples14782228
Cross-Platform Rating47475796
Single Thread Rating11531274
CPU Mark20182529
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 19th of April 2021 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
 2,018
AMD FX-4100 Quad-Core
 2,529
PassMark Software © 2008-2021
CPU Value (CPU Mark / $Price)
As of 19th of April 2021 - Higher results represent better value
Intel Core2 Quad Q8400 @ 2.66GHz
 15.66
AMD FX-4100 Quad-Core
 64.22
PassMark Software © 2008-2021
CPU Single Thread Rating
As of 19th of April 2021 - Higher results represent better performance
Intel Core2 Quad Q8400 @ 2.66GHz
 1,153
AMD FX-4100 Quad-Core
 1,274
PassMark Software © 2008-2021

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 Q8400 @ 2.66GHzAMD FX-4100 Quad-Core
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.