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Differences What are the advantages of each

Front view of Intel Core i3 2100

Reasons to consider the
Intel Core i3 2100

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Much higher clock speed 3.1 GHz vs 1 GHz More than 3x 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 (Single core) score 1,583 vs 312 More than 5x better PassMark (Single core) score
Much better overclocked clock speed (Air) 3.23 GHz vs 1 GHz Around 3.2x better overclocked clock speed (Air)
More l2 cache 0.5 MB vs 0.25 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly better geekbench 3 Multi-Core score 4,786 vs 1,724 More than 2.8x better geekbench 3 Multi-Core score
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Water) 3.23 GHz vs 1 GHz Around 3.2x better overclocked clock speed (Water)
More cores 2 vs 1 Twice as many cores; run more applications at once
Front view of AMD Sempron 2100+

Reasons to consider the
AMD Sempron 2100+

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Much lower typical power consumption 6.5W vs 98.28W 15.1x lower typical power consumption
Much better performance per watt 6.69 pt/W vs 1.41 pt/W More than 4.8x better performance per watt
Much higher Maximum operating temperature 95 °C vs 69.1 °C More than 35% higher Maximum operating temperature
Much lower annual home energy cost 1.93 $/year vs 37.88 $/year 19.7x lower annual home energy cost
Much lower annual commercial energy cost 7.01 $/year vs 93.47 $/year 13.3x lower annual commercial energy cost

Benchmarks Real world tests of Core i3 2100 vs Sempron 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 i3 2100
153,100 MB/s
Sempron 2100+
58,900 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 2100  vs
Sempron 2100+ 
Clock speed 3.1 GHz 1 GHz
Cores Dual core Single core

features

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

power consumption

TDP 65W 8W
Annual home energy cost 37.88 $/year 1.93 $/year
Annual commercial energy cost 93.47 $/year 7.01 $/year
Performance per watt 1.41 pt/W 6.69 pt/W
Typical power consumption 98.28W 6.5W

details

Core i3 2100  vs
Sempron 2100+ 
Threads 4 1
L2 cache 0.5 MB 0.25 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1
Operating temperature Unknown - 69.1°C Unknown - 95°C

overclocking

Overclock popularity 101 1
Overclock review score 4.5 0
Overclocked clock speed 3.23 GHz 1 GHz
Overclocked clock speed (Water) 3.23 GHz 1 GHz
PassMark (Overclocked) 1,518.9 1,478.1
Overclocked clock speed (Air) 3.23 GHz 1 GHz
Intel Core i3 2100
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AMD Sempron 2100+
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