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Differences What are the advantages of each

Front view of Intel Core i3 2120

Reasons to consider the
Intel Core i3 2120

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Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 3.3 GHz vs 2.8 GHz Around 20% higher clock speed
Significantly lower typical power consumption 52.81W vs 77.19W More than 30% lower typical power consumption
Newer Jan, 2011 vs Jan, 2007 Release date over 4 years later
Better overclocked clock speed (Air) 3.42 GHz vs 2.8 GHz More than 20% better overclocked clock speed (Air)
More threads 4 vs 2 Twice as many threads
Significantly lower annual home energy cost 15.66 $/year vs 22.89 $/year More than 30% lower annual home energy cost
Significantly lower annual commercial energy cost 56.94 $/year vs 83.22 $/year More than 30% lower annual commercial energy cost
Better overclocked clock speed (Water) 3.37 GHz vs 2.8 GHz More than 20% better overclocked clock speed (Water)
Front view of AMD Opteron 890

Reasons to consider the
AMD Opteron 890

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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
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core

Features Key features of the Core i3 2120  vs Opteron 890 

clock speed

Core i3 2120
3.3 GHz
Opteron 890
2.8 GHz

L2 cache

overclocked clock speed (air)

Core i3 2120
3.42 GHz
Opteron 890
2.8 GHz

overclocked clock speed (water)

Core i3 2120
3.37 GHz
Opteron 890
2.8 GHz

Specifications Full list of technical specs

summary

Core i3 2120  vs
Opteron 890 
Clock speed 3.3 GHz 2.8 GHz
Cores Dual core Dual 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
Supports dynamic frequency scaling Yes Yes

details

Core i3 2120  vs
Opteron 890 
Threads 4 2
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 1 8
Clock multiplier 33 14
Operating temperature Unknown - 69.1°C 0 - 67°C

overclocking

Overclocked clock speed 3.42 GHz 2.8 GHz
Overclocked clock speed (Water) 3.37 GHz 2.8 GHz
Overclocked clock speed (Air) 3.42 GHz 2.8 GHz

power consumption

TDP 65W 95W
Annual home energy cost 15.66 $/year 22.89 $/year
Annual commercial energy cost 56.94 $/year 83.22 $/year
Typical power consumption 52.81W 77.19W
Intel Core i3 2120
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AMD Opteron 890
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