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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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Much better 3DMark06 CPU score 490 vs 19.5 Around 25.2x better 3DMark06 CPU score
Higher clock speed 1.66 GHz vs 1 GHz More than 65% higher clock speed
Better overclocked clock speed (Air) 1.88 GHz vs 1.34 GHz More than 40% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 1.67 GHz vs 1 GHz More than 65% better overclocked clock speed (Water)
Front view of AMD C-60

Reasons to consider the
AMD C-60

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Much better geekbench 3 AES single core score 38,550 MB/s vs 25,700 MB/s 50% better geekbench 3 AES single core score
More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Newer manufacturing process 40 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher GPU clock speed 276 MHz vs 200 MHz Around 40% higher GPU clock speed
More cores 2 vs 1 Twice as many cores; run more applications at once
Newer Aug, 2011 vs Jun, 2010 Release date over 1 years later

Benchmarks Real world tests of Atom N455 vs AMD C-60

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
AMD C-60
38,550 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench

Atom N455
872
AMD C-60
1,133

3D Mark 06 (CPU)

Atom N455
490
AMD C-60
19.5

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Atom N455  vs
AMD C-60 
Clock speed 1.66 GHz 1 GHz
Cores Single core Dual core

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
AMD-V
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 6.5W 9W
Annual home energy cost 1.57 $/year 2.17 $/year
Annual commercial energy cost 5.69 $/year 7.88 $/year
Performance per watt 3.88 pt/W 3.96 pt/W
Typical power consumption 5.28W 7.31W

details

Atom N455  vs
AMD C-60 
Threads 2 2
L2 cache 0.5 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 45 nm 40 nm
Max CPUs 1 1
Clock multiplier 10 5

overclocking

Overclocked clock speed 1.88 GHz 1.34 GHz
Overclocked clock speed (Water) 1.67 GHz 1 GHz
PassMark (Overclocked) 266.6 406.8
Overclocked clock speed (Air) 1.88 GHz 1.34 GHz

integrated graphics

GPU GPU GPU
Label Integrated AMD Radeon HD 6290
GPU clock speed 200 MHz 276 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR2
Intel Atom N455
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AMD C-60
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