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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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Much higher clock speed 3.3 GHz vs 1.86 GHz More than 75% 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
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Air) 3.42 GHz vs 1.87 GHz Around 85% better overclocked clock speed (Air)
More cores 2 vs 1 Twice as many cores; run more applications at once
Much better overclocked clock speed (Water) 3.37 GHz vs 1.87 GHz More than 80% better overclocked clock speed (Water)
Front view of Intel Celeron 445

Reasons to consider the
Intel Celeron 445

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Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core

Features Key features of the Core i3 2120  vs Celeron 445 

clock speed

Core i3 2120
3.3 GHz
Celeron 445
1.86 GHz

L2 cache

Core i3 2120
0.5 MB
Celeron 445
0.5 MB

overclocked clock speed (air)

Core i3 2120
3.42 GHz
Celeron 445
1.87 GHz

overclocked clock speed (water)

Core i3 2120
3.37 GHz
Celeron 445
1.87 GHz

Specifications Full list of technical specs

summary

Core i3 2120  vs
Celeron 445 
Clock speed 3.3 GHz 1.86 GHz
Cores Dual core Single core
Socket type
LGA 1155
LGA 771

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 15.66 $/year
Annual commercial energy cost 56.94 $/year 56.94 $/year
Typical power consumption 52.81W 52.81W

details

Core i3 2120  vs
Celeron 445 
Architecture x86-64 x86-64
Threads 4 1
L2 cache 0.5 MB 0.5 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 32 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.42 GHz 1.87 GHz
Overclocked clock speed (Water) 3.37 GHz 1.87 GHz
Overclocked clock speed (Air) 3.42 GHz 1.87 GHz

integrated graphics

GPU GPU None
Label Intel® HD Graphics 2000 N/A
Number of displays supported 2 N/A
GPU clock speed 850 MHz N/A
Turbo clock speed 1,100 MHz N/A

bus

Architecture DMI FSB
Number of links 1 1
Intel Core i3 2120
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Intel Celeron 445
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