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Differences What are the advantages of each

Front view of Intel Atom N455

Reasons to consider the
Intel Atom N455

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Front view of Intel Atom N280

Reasons to consider the
Intel Atom N280

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CPUBoss is not aware of any important advantages of the N280 vs the N455.

Benchmarks Real world tests of Atom N455 vs N280

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Atom N455
25,700 MB/s
Atom N280
25,750 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Atom N455  vs
N280 
Clock speed 1.66 GHz 1.66 GHz
Cores Single core Single core

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support No No
Instruction set extensions
SSE2
MMX
SSE3
SSE
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 6.5W 2.5W
Annual home energy cost 1.57 $/year 0.6 $/year
Performance per watt 3.88 pt/W 10.18 pt/W
Typical power consumption 5.28W 2.03W

details

Atom N455  vs
N280 
Architecture x86-64 x86
Threads 2 2
L2 cache 0.5 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Transistor count 123,000,000 47,000,000
Max CPUs 1 1
Clock multiplier 10 10

overclocking

Overclocked clock speed 1.88 GHz 1.88 GHz
Overclocked clock speed (Water) 1.67 GHz 1.67 GHz
Overclocked clock speed (Air) 1.88 GHz 1.88 GHz

integrated graphics

GPU GPU None
Label Integrated N/A
GPU clock speed 200 MHz N/A

bus

Architecture DMI FSB
Number of links 1 1
Intel Atom N455
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Intel Atom N280
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