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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD A8-6600K APU vs AMD Athlon X4 840

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

×AMD A8-6600K APU×AMD Athlon X4 840+ ADD
Price$41.35
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$124.951
Socket TypeFM2FM2+
CPU ClassDesktopDesktop
Clockspeed3.9 GHz3.1 GHz
Turbo SpeedUp to 4.2 GHzUp to 3.8 GHz
# of Physical Cores4 (in 2 physical modules)4 (in 2 physical modules)
Max TDP100W65W
Yearly Running Cost$18.25$11.86
First Seen on ChartQ2 2013Q1 2015
# of Samples946216
Cross-Platform Rating63926763
Single Thread Rating15251493
CPU Mark29833305
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.

CPU Mark Rating
As of 22nd of June 2021 - Higher results represent better performance
AMD A8-6600K APU
2,983
AMD Athlon X4 840
3,305
CPU Value (CPU Mark / $Price)
As of 22nd of June 2021 - Higher results represent better value
AMD A8-6600K APU
72.13
AMD Athlon X4 840
26.45
CPU Single Thread Rating
As of 22nd of June 2021 - Higher results represent better performance
AMD A8-6600K APU
1,525
AMD Athlon X4 840
1,493

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 A8-6600K APUAMD Athlon X4 840
Max TDP100W65W
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.