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Differences What are the advantages of each

Front view of Intel Core i3 2105

Reasons to consider the
Intel Core i3 2105

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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 52.81W vs 98.28W More than 45% 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 37.88 $/year 2.4x lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 93.47 $/year Around 40% lower annual commercial energy cost
Better overclocked clock speed (Air) 3.29 GHz vs 3.23 GHz Almost the same
Front view of Intel Core i3 2100

Reasons to consider the
Intel Core i3 2100

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Better overclocked clock speed (Water) 3.23 GHz vs 3.1 GHz Around 5% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i3 2105 vs 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 2105
150,600 MB/s
Core i3 2100
153,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

GeekBench (64-bit) Data courtesy Primate Labs

GeekBench

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 2105  vs
2100 
Clock speed 3.1 GHz 3.1 GHz
Cores Dual core Dual core
Socket type
LGA 1155
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 37.88 $/year
Annual commercial energy cost 56.94 $/year 93.47 $/year
Performance per watt 2.73 pt/W 1.41 pt/W
Typical power consumption 52.81W 98.28W

bus

Architecture DMI DMI
Number of links 1 1
Transfer rate 5,000 MT/s 5,000 MT/s

details

Core i3 2105  vs
2100 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 3 MB 3 MB
L3 cache per core 1.5 MB/core 1.5 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 31 31
Operating temperature Unknown - 69.1°C Unknown - 69.1°C

overclocking

Overclocked clock speed 3.29 GHz 3.23 GHz
Overclocked clock speed (Water) 3.1 GHz 3.23 GHz
Overclocked clock speed (Air) 3.29 GHz 3.23 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 3000 Intel® HD Graphics 2000
Number of displays supported 2 2
GPU clock speed 850 MHz 850 MHz
Turbo clock speed 1,100 MHz 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 21,333.32 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Core i3 2105
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Intel Core i3 2100
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