CPUBoss Review Our evaluation of 3120M vs 2100 among all CPUs

Performance

Benchmark performance using all cores

PCMark 8 Home 3.0 Accelerated, PassMark and 1 more

Single-core Performance

Individual core benchmark performance

PassMark (Single Core), Geekbench 3 Single Core and 1 more

Integrated Graphics

Integrated GPU performance for graphics

Sky Diver and Cloud Gate

Integrated Graphics (OpenCL)

Integrated GPU performance for parallel computing

CompuBench 1.5 Bitcoin mining and 4 more

Performance per Watt

How efficiently does the processor use electricity?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

Value

Are you paying a premium for performance?

Sky Diver, Cloud Gate, CompuBench 1.5 Bitcoin mining and 11 more

8.2

CPUBoss Score

Combination of all six facets

Winner
Intel Core i3 2100 

CPUBoss recommends the Intel Core i3 2100  based on its single-core performance and value.

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VS

Differences What are the advantages of each

Front view of Intel Core i3 3120M

Reasons to consider the
Intel Core i3 3120M

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Much better CompuBench 1.5 face detection score 7.53 mPixels/s vs 2.05 mPixels/s Around 3.8x better CompuBench 1.5 face detection score
Much lower typical power consumption 28.44W vs 98.28W 3.5x lower typical power consumption
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
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More number of displays supported 3 vs 2 1 more number of displays supported
Significantly higher Maximum operating temperature 90 °C vs 69.1 °C More than 30% higher Maximum operating temperature
Much lower annual home energy cost 8.43 $/year vs 37.88 $/year 4.5x lower annual home energy cost
Better performance per watt 3.96 pt/W vs 1.41 pt/W More than 2.8x better performance per watt
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 30.66 $/year vs 93.47 $/year 3x lower annual commercial energy cost
Newer Sep, 2012 vs Jan, 2011 Release date over 1 years later
Front view of Intel Core i3 2100

Reasons to consider the
Intel Core i3 2100

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Higher clock speed 3.1 GHz vs 2.5 GHz Around 25% higher clock speed
Significantly higher GPU clock speed 850 MHz vs 650 MHz More than 30% higher GPU clock speed
Much better performance per dollar 1.14 pt/$ vs 0.62 pt/$ More than 85% better performance per dollar
Better overclocked clock speed (Air) 3.23 GHz vs 2.53 GHz More than 25% better overclocked clock speed (Air)
Better PassMark (Single core) score 1,583 vs 1,313 More than 20% better PassMark (Single core) score
Better geekbench 3 Multi-Core score 4,786 vs 4,146 More than 15% better geekbench 3 Multi-Core score
Better overclocked clock speed (Water) 3.23 GHz vs 2.5 GHz Around 30% better overclocked clock speed (Water)

Benchmarks Real world tests of Core i3 3120M vs 2100

CompuBench 1.5 (Face detection)

Core i3 3120M
7.53 mPixels/s
Core i3 2100
2.05 mPixels/s

PCMark 8 Home 3.0 Accelerated Data courtesy FutureMark

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 3120M
131,100 MB/s
Core i3 2100
153,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 3120M  vs
2100 
Clock speed 2.5 GHz 3.1 GHz
Cores Dual core Dual core
Socket type
rPGA 988B
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 35W 65W
Annual home energy cost 8.43 $/year 37.88 $/year
Annual commercial energy cost 30.66 $/year 93.47 $/year
Performance per watt 3.96 pt/W 1.41 pt/W
Typical power consumption 28.44W 98.28W

bus

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

details

Core i3 3120M  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 22 nm 32 nm
Max CPUs 1 1
Clock multiplier 25 31
Operating temperature Unknown - 90°C Unknown - 69.1°C

overclocking

Overclocked clock speed 2.53 GHz 3.23 GHz
Overclocked clock speed (Water) 2.5 GHz 3.23 GHz
PassMark (Overclocked) 1,976.5 1,518.9
Overclocked clock speed (Air) 2.53 GHz 3.23 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 4000 Intel® HD Graphics 2000
Number of displays supported 3 2
GPU clock speed 650 MHz 850 MHz
Turbo clock speed 1,100 MHz 1,100 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3L-1600
DDR3-1333
DDR3-1066
DDR3L-1333
DDR3RS-1600
DDR3RS-1333
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 25,600 MB/s 21,333.32 MB/s
Maximum memory size 32,768 MB 32,768 MB
Intel Core i3 3120M
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Intel Core i3 2100
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