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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

AMD Phenom II X4 840 vs AMD A10-5800K APU

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

×AMD Phenom II X4 840×AMD A10-5800K APU+ ADD
Price$29.77
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$47.81
Socket TypeAM2+/AM3FM2
CPU ClassDesktopDesktop
Clockspeed3.2 GHz3.8 GHz
Turbo SpeedNot SupportedUp to 4.2 GHz
# of Physical Cores4 (Threads: 4)4 (in 2 physical modules)
Max TDP95W100W
Yearly Running Cost$17.34$18.25
First Seen on ChartQ1 2011Q4 2012
# of Samples6921685
Cross-Platform Rating50906435
Single Thread Rating13061492
CPU Mark23532920
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 Phenom II X4 840
2,353
AMD A10-5800K APU
2,920
CPU Value (CPU Mark / $Price)
As of 22nd of June 2021 - Higher results represent better value
AMD Phenom II X4 840
79.02
AMD A10-5800K APU
61.08
CPU Single Thread Rating
As of 22nd of June 2021 - Higher results represent better performance
AMD Phenom II X4 840
1,306
AMD A10-5800K APU
1,492

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 A10-5800K APU
Max TDP95W100W
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.