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Differences What are the advantages of each

Front view of Intel Core i3 2120T

Reasons to consider the
Intel Core i3 2120T

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 28.44W vs 36.56W More than 20% lower typical power consumption
Much lower annual home energy cost 8.43 $/year vs 10.84 $/year More than 20% lower annual home energy cost
Much lower annual commercial energy cost 30.66 $/year vs 39.42 $/year More than 20% lower annual commercial energy cost
Front view of AMD Athlon II X3 420e

Reasons to consider the
AMD Athlon II X3 420e

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More cores 3 vs 2 1 more cores; run more applications at once
Much higher Maximum operating temperature 72 °C vs 65 °C More than 10% higher Maximum operating temperature

Benchmarks Real world tests of Core i3 2120T vs Athlon II X3 420e

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 2120T  vs
Athlon II X3 420e 
Clock speed 2.6 GHz 2.6 GHz
Cores Dual core Tri core
Socket type
LGA 1155
AM3
Is unlocked No No

features

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

power consumption

TDP 35W 45W
Annual home energy cost 8.43 $/year 10.84 $/year
Annual commercial energy cost 30.66 $/year 39.42 $/year
Performance per watt 3.13 pt/W 2.04 pt/W
Typical power consumption 28.44W 36.56W

details

Core i3 2120T  vs
Athlon II X3 420e 
Architecture x86-64 x86-64
Threads 4 3
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 0.67 MB/core
L3 cache 3 MB 0.5 MB
L3 cache per core 1.5 MB/core 0.17 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 1 1
Operating temperature Unknown - 65°C Unknown - 72°C

overclocking

Overclocked clock speed 2.61 GHz 2.6 GHz
Overclocked clock speed (Water) 2.6 GHz 2.6 GHz
Overclocked clock speed (Air) 2.61 GHz 2.6 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 2000 N/A
Number of displays supported 2 N/A
GPU clock speed 650 MHz N/A
Turbo clock speed 1,100 MHz N/A
Intel Core i3 2120T
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AMD Athlon II X3 420e
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