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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Atom x5-Z8500 @ 1.44GHz vs AMD Phenom II N640 Dual-Core

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

×Intel Atom x5-Z8500 @ 1.44GHz×AMD Phenom II N640 Dual-Core+ ADD
Price$62.571$54.951
Socket TypeUTFCBGA1380S1
CPU ClassLaptopLaptop
Clockspeed1.4 GHz2.9 GHz
Turbo SpeedUp to 2.2 GHzNot Supported
# of Physical Cores4 (Threads: 4)2 (Threads: 2)
Max TDP4W35W
Yearly Running Cost$0.73$6.39
First Seen on ChartQ2 2015Q4 2010
# of Samples20257
Cross-Platform Rating24490
Single Thread Rating63110393
CPU Mark1230965
1 - Last seen price from our affiliates NewEgg.com & Amazon.com.
3 - Single thread rating may be higher than the overall rating, thread performance is just one component of the CPU Mark.

CPU Mark Rating
As of 21st of October 2021 - Higher results represent better performance
Intel Atom x5-Z8500 @ 1.44GHz
1,230
AMD Phenom II N640 Dual-Core
965
CPU Value (CPU Mark / $Price)
As of 21st of October 2021 - Higher results represent better value
Intel Atom x5-Z8500 @ 1.44GHz
19.66
AMD Phenom II N640 Dual-Core
17.57
CPU Single Thread Rating
As of 21st of October 2021 - Higher results represent better performance
Intel Atom x5-Z8500 @ 1.44GHz
631
AMD Phenom II N640 Dual-Core
1,039

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.
Intel Atom x5-Z8500 @ 1.44GHzAMD Phenom II N640 Dual-Core
Max TDP4W35W
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.