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Differences What are the advantages of each

Front view of Intel Atom N270

Reasons to consider the
Intel Atom N270

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Much newer manufacturing process 45 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Front view of AMD Opteron 242

Reasons to consider the
AMD Opteron 242

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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
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core

Features Key features of the Atom N270  vs Opteron 242 

clock speed

Atom N270
1.6 GHz
Opteron 242
1.6 GHz

L2 cache

Atom N270
0.5 MB

TDP

Specifications Full list of technical specs

summary

Atom N270  vs
Opteron 242 
Clock speed 1.6 GHz 1.6 GHz
Cores Single core Single core
Socket type
437
940

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
3DNow!
Supplemental SSE3

details

Atom N270  vs
Opteron 242 
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 130 nm
Max CPUs 1 2

power consumption

TDP 2.5W 1W
Annual home energy cost 0.6 $/year 0.24 $/year
Annual commercial energy cost 2.19 $/year 0.88 $/year
Typical power consumption 2.03W 0.81W
Intel Atom N270
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AMD Opteron 242
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