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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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Significantly higher clock speed 3.3 GHz vs 2.8 GHz Around 20% higher clock speed
More threads 4 vs 2 Twice as many threads
Significantly better overclocked clock speed (Water) 3.37 GHz vs 2.8 GHz More than 20% better overclocked clock speed (Water)
Front view of AMD A4 3420

Reasons to consider the
AMD A4 3420

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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 more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
Better overclocked clock speed (Air) 3.58 GHz vs 3.42 GHz Around 5% better overclocked clock speed (Air)
Newer Dec, 2011 vs Jan, 2011 Release date 11 months later

Benchmarks Real world tests of Core i3 2120 vs A4 3420

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Core i3 2120
5,074
A4 3420
2,532

GeekBench 3 (Single core) Data courtesy Primate Labs

Core i3 2120
2,371
A4 3420
1,403

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core i3 2120
162,800 MB/s
A4 3420
113,100 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Core i3 2120
5,008
A4 3420
2,510

GeekBench

Core i3 2120
8,526
A4 3420
3,395

PassMark Data courtesy Passmark

Core i3 2120
3,901
A4 3420
1,679

PassMark (Single Core)

Core i3 2120
1,690
A4 3420
929

Specifications Full list of technical specs

summary

Core i3 2120  vs
A4 3420 
Clock speed 3.3 GHz 2.8 GHz
Cores Dual core Dual core
Socket type
LGA 1155
FM1

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
AVX
SSE3
SSE
AMD64
SSE4.1
SSE4.2
AMD-V
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 65W
Annual home energy cost 15.66 $/year 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Performance per watt 2.79 pt/W 1.57 pt/W
Typical power consumption 52.81W 52.81W

details

Core i3 2120  vs
A4 3420 
Architecture x86-64 x86-64
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 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.42 GHz 3.58 GHz
Overclocked clock speed (Water) 3.37 GHz 2.8 GHz
Overclocked clock speed (Air) 3.42 GHz 3.58 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 2000 AMD Radeon HD 6410D
GPU clock speed 850 MHz 600 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1600
DDR3-1333
DDR3-1066
DDR3
Intel Core i3 2120
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AMD A4 3420
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