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Differences What are the advantages of each

Front view of Intel Core i3 3220

Reasons to consider the
Intel Core i3 3220

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Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.3 GHz vs 2.8 GHz Around 20% higher clock speed
Newer Sep, 2012 vs Apr, 2010 Release date over 2 years later
More threads 4 vs 2 Twice as many threads
Better overclocked clock speed (Water) 3.46 GHz vs 2.8 GHz Around 25% better overclocked clock speed (Water)
Front view of AMD Athlon II XLT V66C

Reasons to consider the
AMD Athlon II XLT V66C

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Much more l2 cache 2 MB vs 0.5 MB 4x 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 0.25 MB/core 4x more l2 cache per core
Lower typical power consumption 36.56W vs 44.69W Around 20% lower typical power consumption
Better overclocked clock speed (Air) 3.83 GHz vs 3.43 GHz More than 10% better overclocked clock speed (Air)
Lower annual commercial energy cost 39.42 $/year vs 48.18 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 10.84 $/year vs 13.25 $/year Around 20% lower annual home energy cost

Features Key features of the Core i3 3220  vs Athlon II XLT V66C 

clock speed

L2 cache

overclocked clock speed (air)

Core i3 3220
3.43 GHz

overclocked clock speed (water)

Core i3 3220
3.46 GHz

Specifications Full list of technical specs

summary

Core i3 3220  vs
Athlon II XLT V66C 
Clock speed 3.3 GHz 2.8 GHz
Cores Dual core Dual core
Socket type
LGA 1155
AM3

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

details

Core i3 3220  vs
Athlon II XLT V66C 
Threads 4 2
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.43 GHz 3.83 GHz
Overclocked clock speed (Water) 3.46 GHz 2.8 GHz
Overclocked clock speed (Air) 3.43 GHz 3.83 GHz

power consumption

TDP 55W 45W
Annual home energy cost 13.25 $/year 10.84 $/year
Annual commercial energy cost 48.18 $/year 39.42 $/year
Typical power consumption 44.69W 36.56W
Intel Core i3 3220
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AMD Athlon II XLT V66C
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