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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

CPU Performance Comparison

Performance of selected CPUs can be found below. The values for the CPU are determined from thousands of PerformanceTest benchmark results and is updated daily.


×Intel Core2 Duo E7400 @ 2.80GHz×Intel Core2 Duo E6550 @ 2.33GHz+ ADD
Price$28.991$14.951
Socket TypeLGA775LGA775
CPU ClassDesktopDesktop
Clockspeed2.8 GHz2.3 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores22
Max TDP65W65W
Yearly Running Cost$11.86$11.86
First Seen on ChartQ4 2008Q4 2008
# of Samples12071349
Single Thread Rating1143883
CPU Mark17701497

CPU Mark Rating
As of 13th of December 2019 - Higher results represent better performance
Intel Core2 Duo E7400 @ 2.80GHz
 1,770
Intel Core2 Duo E6550 @ 2.33GHz
 1,497
PassMark Software © 2008-2019
CPU Value (CPU Mark / $Price)
As of 13th of December 2019 - Higher results represent better value
Intel Core2 Duo E7400 @ 2.80GHz
 61.06
Intel Core2 Duo E6550 @ 2.33GHz
 100.16
PassMark Software © 2008-2019
CPU Single Thread Rating
As of 13th of December 2019 - Higher results represent better performance
Intel Core2 Duo E7400 @ 2.80GHz
 1,143
Intel Core2 Duo E6550 @ 2.33GHz
 883
PassMark Software © 2008-2019

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 Duo E7400 @ 2.80GHzIntel Core2 Duo E6550 @ 2.33GHz
Max TDP65W65W
Power consumption per day (kWh)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
Running cost per yearabcabc
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.