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Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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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
Significantly higher clock speed 3 GHz vs 2 GHz 50% higher clock speed
Much newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Much lower typical power consumption 52.81W vs 93.44W Around 45% lower typical power consumption
Much lower annual home energy cost 15.66 $/year vs 27.7 $/year Around 45% lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 100.74 $/year Around 45% lower annual commercial energy cost
Front view of AMD Third Generation Opteron 8350

Reasons to consider the
AMD Third Generation Opteron 8350

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads

Features Key features of the Core2 Duo E8400  vs Third Generation Opteron 8350 

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Third Generation Opteron 8350 
Clock speed 3 GHz 2 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
SSE4.1
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

details

Core2 Duo E8400  vs
Third Generation Opteron 8350 
Threads 2 4
L2 cache 6 MB 2 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 8

power consumption

TDP 65W 115W
Annual home energy cost 15.66 $/year 27.7 $/year
Annual commercial energy cost 56.94 $/year 100.74 $/year
Typical power consumption 52.81W 93.44W

bus

Clock speed 1,333 MHz 1,000 MHz
Intel Core2 Duo E8400
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AMD Third Generation Opteron 8350
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