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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Athlon X4 840 vs AMD A8-6600K APU

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

×AMD Athlon X4 840×AMD A8-6600K APU+ ADD
Price$78.741$74.95
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Socket TypeFM2+FM2
CPU ClassDesktopDesktop
Clockspeed3.1 GHz3.9 GHz
Turbo SpeedUp to 3.8 GHzUp to 4.2 GHz
# of Physical Cores2 (Threads: 4)2 (Threads: 4)
Max TDP65W100W
Yearly Running Cost$11.86$18.25
First Seen on ChartQ1 2015Q2 2013
# of Samples200906
Cross-Platform Rating64916035
Single Thread Rating14631509
CPU Mark32212978
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 2nd of July 2020 - Higher results represent better performance
AMD Athlon X4 840
3,221
AMD A8-6600K APU
2,978
CPU Value (CPU Mark / $Price)
As of 2nd of July 2020 - Higher results represent better value
AMD Athlon X4 840
40.91
AMD A8-6600K APU
39.74
CPU Single Thread Rating
As of 2nd of July 2020 - Higher results represent better performance
AMD Athlon X4 840
1,463
AMD A8-6600K APU
1,509

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 Athlon X4 840AMD A8-6600K APU
Max TDP65W100W
Power consumption per day (kWh)abcabc
Running cost per dayabcabc
Power consumption per year (kWh)abcabc
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Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.