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CPU Benchmarks

Over 1,000,000 CPUs benchmarked

Intel Atom N450 vs Atom N280

The Intel Atom N450 @ 1.66GHz is newer than Intel Atom N280 @ 1.66GHz also around 23% faster in multi-threaded (CPU Mark) testing, it is around 16% faster in single-thread testing. However, Intel Atom N280 @ 1.66GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 242 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 N450 @ 1.66GHz×Intel Atom N280 @ 1.66GHz+ ADD
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Socket TypeBGA559BGA437
CPU ClassLaptopLaptop
Clockspeed1.7 GHz1.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 2)1 (Threads: 2)
CacheL3: 0MBL3: 0MB
TDP5.5W2.5W
Yearly Running Cost$0.91$0.37
Other
First Seen on ChartQ1 2010Q1 2009
# of Samples19052
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)2773(0.0%)2343(-15.5%)
CPU Mark(% diff. to max in group)203(0.0%)157(-22.6%)
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 6th of April 2025 - Higher results represent better performance
Intel Atom N450 @ 1.66GHz
203
Intel Atom N280 @ 1.66GHz
157
PassMark Software © 2008-2025
CPU Single Thread Rating
As of 6th of April 2025 - Higher results represent better performance
Intel Atom N450 @ 1.66GHz
277
Intel Atom N280 @ 1.66GHz
234
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 N450 @ 1.66GHz Intel Atom N280 @ 1.66GHz
Max TDP5.5W2.5W
Power consumption per day (kWh)0.010.01
Running cost per day$0.003$0.001
Power consumption per year (kWh)4.01.8
Running cost per year$1.00$0.46
Shown CPU power usage is based on linear interpolation of Max TDP (i.e. max load). Actual CPU power profile may vary.