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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 840 vs AMD FX-4300 Quad-Core

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

×AMD Phenom II X4 840×AMD FX-4300 Quad-Core+ ADD
Price$78.02
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$84.04
BUY NOW!
Socket TypeAM2+/AM3AM3+
CPU ClassDesktopDesktop
Clockspeed3.2 GHz3.8 GHz
Turbo SpeedNot SupportedUp to 4.0 GHz
# of Physical Cores4 (Threads: 4)4 (in 2 physical modules)
Max TDP95W95W
Yearly Running Cost$17.34$17.34
First Seen on ChartQ1 2011Q4 2012
# of Samples6771876
Cross-Platform Rating51406959
Single Thread Rating12991476
CPU Mark23502918

CPU Mark Rating
As of 26th of November 2020 - Higher results represent better performance
AMD Phenom II X4 840
2,350
AMD FX-4300 Quad-Core
2,918
CPU Value (CPU Mark / $Price)
As of 26th of November 2020 - Higher results represent better value
AMD Phenom II X4 840
30.12
AMD FX-4300 Quad-Core
34.72
CPU Single Thread Rating
As of 26th of November 2020 - Higher results represent better performance
AMD Phenom II X4 840
1,299
AMD FX-4300 Quad-Core
1,476

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 840AMD FX-4300 Quad-Core
Max TDP95W95W
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.