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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 higher clock speed 3.3 GHz vs 1.8 GHz Around 85% higher clock speed
Much newer manufacturing process 32 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark score 3,901 vs 1,002 Around 4x better PassMark score
Much better PassMark (Single core) score 1,690 vs 556 More than 3x better PassMark (Single core) score
Much better overclocked clock speed (Air) 3.42 GHz vs 1.8 GHz More than 90% better overclocked clock speed (Air)
More threads 4 vs 2 Twice as many threads
Much better overclocked clock speed (Water) 3.37 GHz vs 1.8 GHz More than 85% better overclocked clock speed (Water)
Front view of AMD Athlon Neo X2 6850e

Reasons to consider the
AMD Athlon Neo X2 6850e

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Much 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 lower typical power consumption 17.88W vs 52.81W 3x lower typical power consumption
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Much lower annual commercial energy cost 19.27 $/year vs 56.94 $/year 3x lower annual commercial energy cost
Much lower annual home energy cost 5.3 $/year vs 15.66 $/year 3x lower annual home energy cost

Benchmarks Real world tests of Core i3 2120 vs Athlon Neo X2 6850e

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i3 2120
162,800 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 2120  vs
Athlon Neo X2 6850e 
Clock speed 3.3 GHz 1.8 GHz
Cores Dual core Dual core
Socket type
LGA 1155
AM2

features

Has a NX bit Yes Yes
Has virtualization support 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
Athlon Neo X2 6850e 
Threads 4 2
L2 cache 0.5 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.42 GHz 1.8 GHz
Overclocked clock speed (Water) 3.37 GHz 1.8 GHz
Overclocked clock speed (Air) 3.42 GHz 1.8 GHz

power consumption

TDP 65W 22W
Annual home energy cost 15.66 $/year 5.3 $/year
Annual commercial energy cost 56.94 $/year 19.27 $/year
Performance per watt 2.79 pt/W 1.85 pt/W
Typical power consumption 52.81W 17.88W
Intel Core i3 2120
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AMD Athlon Neo X2 6850e
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