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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 B25 vs Intel Core2 Quad Q8400 @ 2.66GHz

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

×AMD Phenom II X4 B25×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
PriceSearch Online$21.241
Socket TypeAM2+/AM3LGA775
CPU ClassDesktopDesktop
Clockspeed2.7 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDPNA295W
Yearly Running CostNA$17.34
First Seen on ChartQ4 2009Q2 2009
# of Samples231431
Cross-Platform Rating04894
Single Thread Rating10501162
CPU Mark21342048
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 15th of July 2020 - Higher results represent better performance
AMD Phenom II X4 B25
2,134
Intel Core2 Quad Q8400 @ 2.66GHz
2,048
CPU Value (CPU Mark / $Price)
As of 15th of July 2020 - Higher results represent better value
AMD Phenom II X4 B25
NA
Intel Core2 Quad Q8400 @ 2.66GHz
96.44
CPU Single Thread Rating
As of 15th of July 2020 - Higher results represent better performance
AMD Phenom II X4 B25
1,050
Intel Core2 Quad Q8400 @ 2.66GHz
1,162

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.
AMD Phenom II X4 B25Intel Core2 Quad Q8400 @ 2.66GHz
Max TDPNA95W
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.