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Differences What are the advantages of each

Front view of Intel Core2 Duo T5870

Reasons to consider the
Intel Core2 Duo T5870

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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
Much lower typical power consumption 28.44W vs 77.19W 2.7x lower typical power consumption
Much lower annual home energy cost 8.43 $/year vs 22.89 $/year 2.7x lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 83.22 $/year 2.7x lower annual commercial energy cost
Front view of AMD Second Generation Opteron 8220

Reasons to consider the
AMD Second Generation Opteron 8220

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Significantly higher clock speed 2.8 GHz vs 2 GHz Around 40% higher clock speed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines

Features Key features of the Core2 Duo T5870  vs Second Generation Opteron 8220 

Specifications Full list of technical specs

summary

Core2 Duo T5870  vs
Second Generation Opteron 8220 
Clock speed 2 GHz 2.8 GHz
Cores Dual core Dual core
Socket type
P
F

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

details

Core2 Duo T5870  vs
Second Generation Opteron 8220 
Threads 2 2
L2 cache 2 MB 2 MB
L2 cache per core 1 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 8

power consumption

TDP 35W 95W
Annual home energy cost 8.43 $/year 22.89 $/year
Annual commercial energy cost 30.66 $/year 83.22 $/year
Typical power consumption 28.44W 77.19W
Intel Core2 Duo T5870
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AMD Second Generation Opteron 8220
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