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Differences What are the advantages of each

Front view of Intel Core i5 3470

Reasons to consider the
Intel Core i5 3470

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Much higher clock speed 3.2 GHz vs 1.8 GHz Around 80% higher clock speed
Much newer manufacturing process 22 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better PassMark score 6,607 vs 869 More than 7.5x better PassMark score
Much better PassMark (Single core) score 1,906 vs 555 Around 3.5x better PassMark (Single core) score
More cores 4 vs 2 Twice as many cores; run more applications at once
More threads 4 vs 2 Twice as many threads
Much better performance per watt 4.41 pt/W vs 0.6 pt/W Around 7.5x better performance per watt
Much better overclocked clock speed (Air) 3.67 GHz vs 2.95 GHz Around 25% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 4.09 GHz vs 1.8 GHz More than 2.2x better overclocked clock speed (Water)
Front view of AMD Sempron X2 2100

Reasons to consider the
AMD Sempron X2 2100

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Much lower typical power consumption 52.81W vs 86.05W Around 40% 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 home energy cost 15.66 $/year vs 31.22 $/year Around 50% lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 84.62 $/year Around 35% lower annual commercial energy cost

Benchmarks Real world tests of Core i5 3470 vs Sempron X2 2100

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 i5 3470
2,470,000 MB/s
Sempron X2 2100
49.8 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i5 3470  vs
Sempron X2 2100 
Clock speed 3.2 GHz 1.8 GHz
Cores Quad core Dual core
Socket type
LGA 1155
AM2

features

Has a NX bit Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3
AES

details

Core i5 3470  vs
Sempron X2 2100 
Threads 4 2
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 22 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.67 GHz 2.95 GHz
Overclocked clock speed (Water) 4.09 GHz 1.8 GHz
Overclocked clock speed (Air) 3.67 GHz 2.95 GHz

power consumption

TDP 77W 65W
Annual home energy cost 31.22 $/year 15.66 $/year
Annual commercial energy cost 84.62 $/year 56.94 $/year
Performance per watt 4.41 pt/W 0.6 pt/W
Typical power consumption 86.05W 52.81W
Intel Core i5 3470
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AMD Sempron X2 2100
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