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Differences What are the advantages of each

Front view of AMD Athlon 64 X2 57

Reasons to consider the
AMD Athlon 64 X2 57

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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
Significantly higher Maximum operating temperature 95 °C vs 70 °C More than 35% higher Maximum operating temperature
Better overclocked clock speed (Air) 3.1 GHz vs 2.47 GHz More than 25% better overclocked clock speed (Air)
More cores 2 vs 1 Twice as many cores; run more applications at once
Significantly better overclocked clock speed (Water) 2.8 GHz vs 1.8 GHz More than 55% better overclocked clock speed (Water)
Front view of AMD Athlon 64 3100+

Reasons to consider the
AMD Athlon 64 3100+

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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
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Lower typical power consumption 20.31W vs 25.19W Around 20% lower typical power consumption
Lower annual home energy cost 6.02 $/year vs 7.47 $/year Around 20% lower annual home energy cost
Lower annual commercial energy cost 21.9 $/year vs 27.16 $/year Around 20% lower annual commercial energy cost

Benchmarks Real world tests of Athlon 64 X2 57 vs 3100+

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Athlon 64 X2 57  vs
3100+ 
Clock speed 1.9 GHz 1.8 GHz
Cores Dual core Single core
Socket type
S1
754
462
AM2

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!

details

Athlon 64 X2 57  vs
3100+ 
Threads 2 1
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 65 nm 130 nm
Max CPUs 1 1
Operating temperature Unknown - 95°C Unknown - 70°C

overclocking

Overclocked clock speed 3.1 GHz 2.47 GHz
Overclocked clock speed (Water) 2.8 GHz 1.8 GHz
Overclocked clock speed (Air) 3.1 GHz 2.47 GHz

power consumption

TDP 31W 25W
Annual home energy cost 7.47 $/year 6.02 $/year
Annual commercial energy cost 27.16 $/year 21.9 $/year
Performance per watt 1.85 pt/W 1.84 pt/W
Typical power consumption 25.19W 20.31W
AMD Athlon 64 X2 57
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AMD Athlon 64 3100+
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