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Differences What are the advantages of each

Front view of Intel Core i5 3570

Reasons to consider the
Intel Core i5 3570

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Significantly higher clock speed 3.4 GHz vs 2.2 GHz Around 55% higher clock speed
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Air) 4.02 GHz vs 2.2 GHz Around 85% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.22 GHz vs 2.2 GHz More than 90% better overclocked clock speed (Water)
Newer Jun, 2012 vs Nov, 2011 Release date 6 months later
Front view of AMD Opteron 42DX EE

Reasons to consider the
AMD Opteron 42DX EE

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Much more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much lower typical power consumption 32.5W vs 107.5W 3.3x lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Slightly more l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
Much lower annual home energy cost 9.64 $/year vs 38.81 $/year 4x lower annual home energy cost
More l3 cache per core 2 MB/core vs 1.5 MB/core Around 35% more l3 cache per core
Much lower annual commercial energy cost 35.04 $/year vs 106 $/year 3x lower annual commercial energy cost

Features Key features of the Core i5 3570  vs Opteron 42DX EE 

clock speed

Core i5 3570
3.4 GHz
Opteron 42DX EE
2.2 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Core i5 3570
4.02 GHz
Opteron 42DX EE
2.2 GHz

overclocked clock speed (water)

Core i5 3570
4.22 GHz
Opteron 42DX EE
2.2 GHz

Specifications Full list of technical specs

summary

Core i5 3570  vs
Opteron 42DX EE 
Clock speed 3.4 GHz 2.2 GHz
Cores Quad core Quad 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
Supplemental SSE3
AES

bus

Architecture DMI HyperTransport 3.0
Transfer rate 5,000 MT/s 6,400 MT/s

details

Core i5 3570  vs
Opteron 42DX EE 
Threads 4 4
L2 cache 1 MB 4 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 6 MB 8 MB
L3 cache per core 1.5 MB/core 2 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 2
Clock multiplier 34 16

overclocking

Overclocked clock speed 4.02 GHz 2.2 GHz
Overclocked clock speed (Water) 4.22 GHz 2.2 GHz
Overclocked clock speed (Air) 4.02 GHz 2.2 GHz

power consumption

TDP 77W 40W
Annual home energy cost 38.81 $/year 9.64 $/year
Annual commercial energy cost 106 $/year 35.04 $/year
Typical power consumption 107.5W 32.5W
Intel Core i5 3570
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AMD Opteron 42DX EE
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