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Intel Atom Z670 vs Atom N455

The Intel Atom Z670 @ 1.50GHz is newer than Intel Atom N455 @ 1.66GHz, while Intel Atom N455 @ 1.66GHz is around 19% faster in multi-threaded (CPU Mark) testing and is significantly faster in single-thread testing. However, Intel Atom Z670 @ 1.50GHz uses substantially less power. All the CPUs in this comparison belong in the Laptop CPU Class.The values below were tabulated from a combined 125 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 Z670 @ 1.50GHz×Intel Atom N455 @ 1.66GHz+ ADD
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Socket TypeBGA518BGA559
CPU ClassLaptopLaptop
Clockspeed1.5 GHz1.7 GHz
Turbo SpeedNot SupportedNot Supported
# of Physical Cores1 (Threads: 2)1 (Threads: 2)
CacheL3: 0MBL3: 0MB
TDP3W6.5W
Yearly Running Cost$0.55$1.10
Other
First Seen on ChartQ2 2011Q3 2010
# of Samples4121
CPU Value0.00.0
Single Thread Rating(% diff. to max in group)95(-64.4%)2683(0.0%)
CPU Mark(% diff. to max in group)158(-19.2%)196(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 26th of December 2024 - Higher results represent better performance
Intel Atom Z670 @ 1.50GHz
158
Intel Atom N455 @ 1.66GHz
196
PassMark Software © 2008-2024
CPU Single Thread Rating
As of 26th of December 2024 - Higher results represent better performance
Intel Atom Z670 @ 1.50GHz
95
Intel Atom N455 @ 1.66GHz
268
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 Z670 @ 1.50GHz Intel Atom N455 @ 1.66GHz
Max TDP3W6.5W
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.