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Intel Atom Z520 vs Atom N270

The Intel Atom Z520 @ 1.33GHz is newer than Intel Atom N270 @ 1.60GHz, while Intel Atom N270 @ 1.60GHz is around 10% faster in multi-threaded (CPU Mark) testing, it is around 13% faster in single-thread testing. However, Intel Atom N270 @ 1.60GHz 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 261 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 Z520 @ 1.33GHz×Intel Atom N270 @ 1.60GHz+ ADD
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Socket TypeBGA441BGA437
CPU ClassLaptopLaptop
Clockspeed1.3 GHz1.6 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 2)1 (Threads: 2)
CacheL3: 0MBL3: 0MB
TDP2W2.5W
Yearly Running Cost$0.37$0.37
Other
First Seen on ChartQ2 2009Q1 2009
# of Samples22239
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)1513(-13.4%)1743(0.0%)
CPU Mark(% diff. to max in group)122(-9.9%)136(0.0%)
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 December 2024 - Higher results represent better performance
Intel Atom Z520 @ 1.33GHz
122
Intel Atom N270 @ 1.60GHz
136
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 21st of December 2024 - Higher results represent better performance
Intel Atom Z520 @ 1.33GHz
151
Intel Atom N270 @ 1.60GHz
174
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 Z520 @ 1.33GHz Intel Atom N270 @ 1.60GHz
Max TDP2W2.5W
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.