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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 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.3 GHz vs 2.6 GHz More than 25% higher clock speed
Newer Sep, 2012 vs Feb, 2005 Release date over 7 years later
Better PassMark score 4,229 vs 760 More than 5.5x better PassMark score
Lower typical power consumption 44.69W vs 55.25W Around 20% lower typical power consumption
Better overclocked clock speed (Air) 3.43 GHz vs 2.73 GHz More than 25% better overclocked clock speed (Air)
Better performance per watt 2.69 pt/W vs 0.46 pt/W Around 6x better performance per watt
More threads 4 vs 1 3 more threads
More cores 2 vs 1 Twice as many cores; run more applications at once
Significantly better overclocked clock speed (Water) 3.46 GHz vs 2.6 GHz Around 35% better overclocked clock speed (Water)
Lower annual home energy cost 13.25 $/year vs 16.38 $/year Around 20% lower annual home energy cost
Lower annual commercial energy cost 48.18 $/year vs 59.57 $/year Around 20% lower annual commercial energy cost
Front view of AMD Opteron 252

Reasons to consider the
AMD Opteron 252

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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
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

Benchmarks Real world tests of Core i3 3220 vs Opteron 252

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Core i3 3220  vs
Opteron 252 
Clock speed 3.3 GHz 2.6 GHz
Cores Dual core Single core
Socket type
LGA 1155
940

features

Has a NX bit Yes Yes
Instruction set extensions
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
Opteron 252 
Threads 4 1
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 22 nm 90 nm
Max CPUs 1 2
Clock multiplier 33 13
Operating temperature Unknown - 65.3°C 0 - 67°C

overclocking

Overclocked clock speed 3.43 GHz 2.73 GHz
Overclocked clock speed (Water) 3.46 GHz 2.6 GHz
PassMark (Overclocked) 3,775.1 1,037.9
Overclocked clock speed (Air) 3.43 GHz 2.73 GHz

power consumption

TDP 55W 68W
Annual home energy cost 13.25 $/year 16.38 $/year
Annual commercial energy cost 48.18 $/year 59.57 $/year
Performance per watt 2.69 pt/W 0.46 pt/W
Typical power consumption 44.69W 55.25W
Intel Core i3 3220
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AMD Opteron 252
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