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Differences What are the advantages of each

Front view of Intel Core i5 3470S

Reasons to consider the
Intel Core i5 3470S

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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 2.9 GHz vs 2.2 GHz More than 30% higher clock speed
Much better overclocked clock speed (Air) 3.58 GHz vs 2.2 GHz Around 65% better overclocked clock speed (Air)
More l3 cache per core 1.5 MB/core vs 1 MB/core 50% more l3 cache per core
Newer Jun, 2012 vs Jun, 2010 Release date over 1 years later
Better overclocked clock speed (Water) 2.9 GHz vs 2.2 GHz More than 30% better overclocked clock speed (Water)
Front view of AMD Opteron 41KX HE

Reasons to consider the
AMD Opteron 41KX HE

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Much more l2 cache 3 MB vs 1 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
More cores 6 vs 4 2 more cores; run more applications at once
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
More threads 6 vs 4 2 more threads

Features Key features of the Core i5 3470S  vs Opteron 41KX HE 

clock speed

Core i5 3470S
2.9 GHz
Opteron 41KX HE
2.2 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i5 3470S
3.58 GHz
Opteron 41KX HE
2.2 GHz

overclocked clock speed (water)

Core i5 3470S
2.9 GHz
Opteron 41KX HE
2.2 GHz

Specifications Full list of technical specs

summary

Core i5 3470S  vs
Opteron 41KX HE 
Clock speed 2.9 GHz 2.2 GHz
Cores Quad core Hexa core
Socket type
LGA 1155
C32

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

bus

Architecture DMI 2.0 HyperTransport 3.0

details

Core i5 3470S  vs
Opteron 41KX HE 
Threads 4 6
L2 cache 1 MB 3 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 6 MB 6 MB
L3 cache per core 1.5 MB/core 1 MB/core
Manufacture process 22 nm 45 nm
Max CPUs 1 2
Clock multiplier 29 11

overclocking

Overclocked clock speed 3.58 GHz 2.2 GHz
Overclocked clock speed (Water) 2.9 GHz 2.2 GHz
Overclocked clock speed (Air) 3.58 GHz 2.2 GHz

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Typical power consumption 52.81W 52.81W
Intel Core i5 3470S
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AMD Opteron 41KX HE
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