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Differences What are the advantages of each

Front view of Intel Core2 Duo E6550

Reasons to consider the
Intel Core2 Duo E6550

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 65 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache per core 2 MB/core vs 1 MB/core 2x more l2 cache per core
More cores 2 vs 1 Twice as many cores; run more applications at once
Front view of AMD Opteron 250

Reasons to consider the
AMD Opteron 250

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Much lower typical power consumption 2.44W vs 52.81W 21.7x lower typical power consumption
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Much lower annual home energy cost 0.72 $/year vs 15.66 $/year 21.7x lower annual home energy cost
Much lower annual commercial energy cost 2.63 $/year vs 56.94 $/year 21.7x lower annual commercial energy cost

Features Key features of the Core2 Duo E6550  vs Opteron 250 

clock speed

Core2 Duo E6550
2.33 GHz
Opteron 250
2.4 GHz

L2 cache

Specifications Full list of technical specs

summary

Core2 Duo E6550  vs
Opteron 250 
Clock speed 2.33 GHz 2.4 GHz
Cores Dual core Single core
Socket type
LGA 775
940

features

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

details

Core2 Duo E6550  vs
Opteron 250 
Threads 2 1
L2 cache 4 MB 1 MB
L2 cache per core 2 MB/core 1 MB/core
Manufacture process 65 nm 90 nm
Max CPUs 1 2
Operating temperature Unknown - 72°C 0 - 71°C

power consumption

TDP 65W 3W
Annual home energy cost 15.66 $/year 0.72 $/year
Annual commercial energy cost 56.94 $/year 2.63 $/year
Typical power consumption 52.81W 2.44W
Intel Core2 Duo E6550
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AMD Opteron 250
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