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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 B50 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 B50×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
PriceSearch Online$128.881
Socket TypeAM2+/AM3LGA775
CPU ClassDesktopDesktop
Clockspeed3.2 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 ChartQ2 2009Q2 2009
# of Samples4211469
Cross-Platform Rating51294735
Single Thread Rating12351151
CPU Mark21812011
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 25th of February 2021 - Higher results represent better performance
AMD Phenom II X4 B50
2,181
Intel Core2 Quad Q8400 @ 2.66GHz
2,011
CPU Value (CPU Mark / $Price)
As of 25th of February 2021 - Higher results represent better value
AMD Phenom II X4 B50
NA
Intel Core2 Quad Q8400 @ 2.66GHz
15.61
CPU Single Thread Rating
As of 25th of February 2021 - Higher results represent better performance
AMD Phenom II X4 B50
1,235
Intel Core2 Quad Q8400 @ 2.66GHz
1,151

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 B50Intel Core2 Quad Q8400 @ 2.66GHz
Max TDPNA95W
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.