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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 920 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 920×Intel Core2 Quad Q8400 @ 2.66GHz+ ADD
Price$27.89
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$21.241
Socket TypeAM2+LGA775
CPU ClassDesktopDesktop
Clockspeed2.8 GHz2.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores4 (Threads: 4)4 (Threads: 4)
Max TDP125W95W
Yearly Running Cost$22.81$17.34
First Seen on ChartQ1 2009Q2 2009
# of Samples1851422
Cross-Platform Rating49714870
Single Thread Rating10791157
CPU Mark20202028
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 31st of May 2020 - Higher results represent better performance
AMD Phenom II X4 920
2,020
Intel Core2 Quad Q8400 @ 2.66GHz
2,028
CPU Value (CPU Mark / $Price)
As of 31st of May 2020 - Higher results represent better value
AMD Phenom II X4 920
72.41
Intel Core2 Quad Q8400 @ 2.66GHz
95.46
CPU Single Thread Rating
As of 31st of May 2020 - Higher results represent better performance
AMD Phenom II X4 920
1,079
Intel Core2 Quad Q8400 @ 2.66GHz
1,157

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 920Intel Core2 Quad Q8400 @ 2.66GHz
Max TDP125W95W
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.