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Differences What are the advantages of each

Front view of Intel Atom N450

Reasons to consider the
Intel Atom N450

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Much better 3DMark06 CPU score 494 vs 4.2 More than 117.5x better 3DMark06 CPU score
Higher clock speed 1.66 GHz vs 1.2 GHz Around 40% higher clock speed
Better performance per watt 4.63 pt/W vs 2.69 pt/W More than 70% better performance per watt
Front view of AMD C 30

Reasons to consider the
AMD C 30

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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
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Newer Jan, 2011 vs Jan, 2010 Release date a year later

Benchmarks Real world tests of Atom N450 vs AMD C 30

3D Mark 06 (CPU)

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Atom N450  vs
AMD C 30 
Clock speed 1.66 GHz 1.2 GHz
Cores Single core Single 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR2-667
DDR2

details

Atom N450  vs
AMD C 30 
Threads 2 1
L2 cache 0.5 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 45 nm 40 nm
Max CPUs 1 1
Clock multiplier 10 6
Voltage range 0.8 - 1.18V 1.25 - 1.35V

integrated graphics

GPU GPU GPU
Label Integrated Radeon™ HD 6250

power consumption

TDP 5.5W 9W
Annual home energy cost 1.32 $/year 2.17 $/year
Annual commercial energy cost 4.82 $/year 7.88 $/year
Performance per watt 4.63 pt/W 2.69 pt/W
Typical power consumption 4.47W 7.31W
Intel Atom N450
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AMD C 30
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