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Differences What are the advantages of each

Front view of AMD Phenom II X2 521

Reasons to consider the
AMD Phenom II X2 521

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Much higher clock speed 3.5 GHz vs 1.6 GHz Around 2.2x higher clock speed
Significantly more l2 cache 2 MB vs 1 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
Front view of AMD A6 for AIOs 8500P

Reasons to consider the
AMD A6 for AIOs 8500P

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Much newer manufacturing process 28 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 12.19W vs 52.81W 4.3x lower typical power consumption
Much lower annual home energy cost 3.61 $/year vs 15.66 $/year 4.3x lower annual home energy cost
Much lower annual commercial energy cost 13.14 $/year vs 56.94 $/year 4.3x lower annual commercial energy cost

Features Key features of the Phenom II X2 521  vs A6 for AIOs 8500P 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Phenom II X2 521  vs
A6 for AIOs 8500P 
Clock speed 3.5 GHz 1.6 GHz
Cores Dual core Dual core

features

Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
AVX
SSE3
SSE
FMA4
3DNow!
AES

details

Phenom II X2 521  vs
A6 for AIOs 8500P 
Threads 2 2
L2 cache 2 MB 1 MB
L2 cache per core 1 MB/core 0.5 MB/core
Manufacture process 45 nm 28 nm

power consumption

TDP 65W 15W
Annual home energy cost 15.66 $/year 3.61 $/year
Annual commercial energy cost 56.94 $/year 13.14 $/year
Typical power consumption 52.81W 12.19W
AMD Phenom II X2 521
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AMD A6 for AIOs 8500P
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