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Differences What are the advantages of each

Front view of AMD Second Generation Opteron 22-1

Reasons to consider the
AMD Second Generation Opteron 22-1

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Higher clock speed 2.6 GHz vs 2.4 GHz Around 10% higher clock speed
Significantly more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of AMD Phenom X4 9700

Reasons to consider the
AMD Phenom X4 9700

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Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once

Features Key features of the Second Generation Opteron 22-1  vs Phenom X4 9700 

Specifications Full list of technical specs

summary

Second Generation Opteron 22-1  vs
Phenom X4 9700 
Clock speed 2.6 GHz 2.4 GHz
Cores Dual core Quad core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
3DNow!
Supports dynamic frequency scaling Yes Yes

details

Second Generation Opteron 22-1  vs
Phenom X4 9700 
Threads 2 4
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 90 nm 65 nm
Max CPUs 2 1

power consumption

Typical power consumption N/A 101.56W
AMD Second Generation Opteron 22-1
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AMD Phenom X4 9700
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