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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Core2 Duo E8400 @ 3.00GHz vs AMD Phenom II X2 B55

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

×Intel Core2 Duo E8400 @ 3.00GHz×AMD Phenom II X2 B55+ ADD
Price$35.51$47.951
Socket TypeLGA775AM3
CPU ClassDesktopDesktop
Clockspeed3.0 GHz3.0 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores22
Max TDP65W80W
Yearly Running Cost$11.86$14.60
First Seen on ChartQ4 2008Q4 2009
# of Samples664458
Cross-Platform Rating35403202
Single Thread Rating1273312463
CPU Mark11921223

CPU Mark Rating
As of 9th of April 2020 - Higher results represent better performance
Intel Core2 Duo E8400 @ 3.00GHz
1,192
AMD Phenom II X2 B55
1,223
CPU Value (CPU Mark / $Price)
As of 9th of April 2020 - Higher results represent better value
Intel Core2 Duo E8400 @ 3.00GHz
33.57
AMD Phenom II X2 B55
25.51
CPU Single Thread Rating
As of 9th of April 2020 - Higher results represent better performance
Intel Core2 Duo E8400 @ 3.00GHz
1,273
AMD Phenom II X2 B55
1,246

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 E8400 @ 3.00GHzAMD Phenom II X2 B55
Max TDP65W80W
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.