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Intel Atom Z520 vs Celeron N4000

The Intel Celeron N4000 @ 1.10GHz is newer than Intel Atom Z520 @ 1.33GHz and is significantly faster in multi-threaded (CPU Mark) testing and is significantly faster in single-thread testing. However, Intel Atom Z520 @ 1.33GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 950 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 Celeron N4000 @ 1.10GHz+ ADD
Price Search Online Search Online
Socket TypeBGA441FCBGA1090
CPU ClassLaptopLaptop
Clockspeed1.3 GHz1.1 GHz
Turbo SpeedNot SupportedUp to 2.6 GHz
# of Physical Cores1 (Threads: 2)2 (Threads: 2)
CacheL3: 0MBL1: 112KB, L2: 4.0MB, L3: 0MB
TDP2W6W
Yearly Running Cost$0.37$1.10
OtherIntel UHD Graphics 600
First Seen on ChartQ2 2009Q2 2018
# of Samples22928
CPU Value0.013.3
Single Thread Rating(% diff. to max in group)1513(-85.5%)1036(0.0%)
CPU Mark(% diff. to max in group)122(-91.4%)1428(0.0%)
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 16th of April 2025 - Higher results represent better performance
Intel Atom Z520 @ 1.33GHz
122
Intel Celeron N4000 @ 1.10GHz
1,428
PassMark Software © 2008-2025
CPU Value (CPU Mark / $Price)
As of 16th of April 2025 - Higher results represent better value
Intel Atom Z520 @ 1.33GHz
NA
Intel Celeron N4000 @ 1.10GHz
13.3
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 16th of April 2025 - Higher results represent better performance
Intel Atom Z520 @ 1.33GHz
151
Intel Celeron N4000 @ 1.10GHz
1,036
PassMark Software © 2008-2025
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 Celeron N4000 @ 1.10GHz
Max TDP2W6W
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.