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Differences What are the advantages of each

Front view of AMD Second Generation Opteron 8218

Reasons to consider the
AMD Second Generation Opteron 8218

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Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Front view of AMD Opteron 4228 HE

Reasons to consider the
AMD Opteron 4228 HE

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Much more l2 cache 6 MB vs 2 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 6 vs 2 Three times as many cores; run more applications at once
Significantly higher clock speed 2.8 GHz vs 2.6 GHz Around 10% higher clock speed
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More threads 6 vs 2 Three times as many threads
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost

Features Key features of the Second Generation Opteron 8218  vs Opteron 4228 HE 

Specifications Full list of technical specs

summary

Second Generation Opteron 8218  vs
Opteron 4228 HE 
Clock speed 2.6 GHz 2.8 GHz
Cores Dual core Hexa core
Socket type
F
C32

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
3DNow!
Supplemental SSE3
AES

details

Second Generation Opteron 8218  vs
Opteron 4228 HE 
Threads 2 6
L2 cache 2 MB 6 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 90 nm 32 nm
Max CPUs 8 2
Operating temperature 0 - 72°C Unknown - 68°C

power consumption

TDP 95W 65W
Annual home energy cost 22.89 $/year 15.66 $/year
Annual commercial energy cost 83.22 $/year 56.94 $/year
Typical power consumption 77.19W 52.81W
AMD Second Generation Opteron 8218
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AMD Opteron 4228 HE
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