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Intel Atom N280 vs Atom Z520

The Intel Atom Z520 @ 1.33GHz is newer than Intel Atom N280 @ 1.66GHz, while Intel Atom N280 @ 1.66GHz is around 22% faster in multi-threaded (CPU Mark) testing, it is around 36% faster in single-thread testing. However, Intel Atom N280 @ 1.66GHz uses around 22% more power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 74 benchmarks submitted from our PerformanceTest software and results and are updated daily to include new submissions.

  • The first section will show basic information for each CPU selected.
  • The additional graphs shows the CPU Mark and Single Thread values of each CPU selected.
  • An accompany graph, if price data is available, will shows the value for money, in terms of the CPU Mark/Thread Rating per dollar.
  • The last section will show approximate yearly running costs for the CPUs.

×Intel Atom N280 @ 1.66GHz×Intel Atom Z520 @ 1.33GHz+ ADD
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Socket TypeBGA437BGA441
CPU ClassLaptopLaptop
Clockspeed1.7 GHz1.3 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 2)1 (Threads: 2)
CacheL3: 0MBL3: 0MB
TDP2.5W2W
Yearly Running Cost$0.37$0.37
Other
First Seen on ChartQ1 2009Q2 2009
# of Samples5222
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)2343(0.0%)1513(-35.6%)
CPU Mark(% diff. to max in group)157(0.0%)122(-22.1%)
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 November 2024 - Higher results represent better performance
Intel Atom N280 @ 1.66GHz
157
Intel Atom Z520 @ 1.33GHz
122
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of November 2024 - Higher results represent better performance
Intel Atom N280 @ 1.66GHz
234
Intel Atom Z520 @ 1.33GHz
151
PassMark Software © 2008-2024
Estimated Energy Usage Cost
Estimated Energy Adjustable Values
Average hours of use per day Average CPU Utilization (0-100%)1 Power cost, $ per kWh2
8
25
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 N280 @ 1.66GHz Intel Atom Z520 @ 1.33GHz
Max TDP2.5W2W
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.