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Differences What are the advantages of each

Front view of AMD Sempron 3700+

Reasons to consider the
AMD Sempron 3700+

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Much newer manufacturing process 65 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2 GHz vs 1.4 GHz Around 45% higher clock speed
Much lower typical power consumption 20.31W vs 66.71W 3.3x lower typical power consumption
Better overclocked clock speed (Air) 2 GHz vs 1.4 GHz Around 45% better overclocked clock speed (Air)
Much lower annual home energy cost 6.02 $/year vs 19.78 $/year 3.3x lower annual home energy cost
Much lower annual commercial energy cost 21.9 $/year vs 71.92 $/year 3.3x lower annual commercial energy cost
Better overclocked clock speed (Water) 2 GHz vs 1.4 GHz Around 45% better overclocked clock speed (Water)
Front view of AMD Opteron 140

Reasons to consider the
AMD Opteron 140

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More l2 cache 1 MB vs 0.5 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core

Features Key features of the Sempron 3700+  vs Opteron 140 

clock speed

Opteron 140
1.4 GHz

L2 cache

overclocked clock speed (air)

Opteron 140
1.4 GHz

overclocked clock speed (water)

Opteron 140
1.4 GHz

TDP

Specifications Full list of technical specs

summary

Sempron 3700+  vs
Opteron 140 
Clock speed 2 GHz 1.4 GHz
Cores Single core Single core

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!

details

Sempron 3700+  vs
Opteron 140 
Threads 1 1
L2 cache 0.5 MB 1 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 65 nm 130 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2 GHz 1.4 GHz
Overclocked clock speed (Water) 2 GHz 1.4 GHz
Overclocked clock speed (Air) 2 GHz 1.4 GHz

power consumption

TDP 25W 82.1W
Annual home energy cost 6.02 $/year 19.78 $/year
Annual commercial energy cost 21.9 $/year 71.92 $/year
Typical power consumption 20.31W 66.71W
AMD Sempron 3700+
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AMD Opteron 140
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