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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 newer manufacturing process 32 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much higher clock speed 3.3 GHz vs 1.53 GHz Around 2.2x higher clock speed
More threads 4 vs 1 3 more threads
Much better overclocked clock speed (Air) 3.42 GHz vs 1.51 GHz More than 2.2x better overclocked clock speed (Air)
More cores 2 vs 1 Twice as many cores; run more applications at once
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Much better overclocked clock speed (Water) 3.37 GHz vs 1.5 GHz Around 2.2x better overclocked clock speed (Water)
Front view of AMD Athlon XP 1800+

Reasons to consider the
AMD Athlon XP 1800+

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CPUBoss is not aware of any important advantages of the AMD Athlon XP 1800+ vs the Intel Core i3 2120.

Features Key features of the Core i3 2120  vs Athlon XP 1800+ 

clock speed

Core i3 2120
3.3 GHz
Athlon XP 1800+
1.53 GHz

L2 cache

Core i3 2120
0.5 MB
Athlon XP 1800+
0.25 MB

overclocked clock speed (air)

Core i3 2120
3.42 GHz
Athlon XP 1800+
1.51 GHz

overclocked clock speed (water)

Core i3 2120
3.37 GHz
Athlon XP 1800+
1.5 GHz

Specifications Full list of technical specs

summary

Core i3 2120  vs
Athlon XP 1800+ 
Clock speed 3.3 GHz 1.53 GHz
Cores Dual core Single core
Socket type
LGA 1155
462

features

Has a NX bit Yes No
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
SSE
SSE4.1
SSE4.2
3DNow!
Supplemental SSE3

details

Core i3 2120  vs
Athlon XP 1800+ 
Threads 4 1
L2 cache 0.5 MB 0.25 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
Manufacture process 32 nm 130 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 3.42 GHz 1.51 GHz
Overclocked clock speed (Water) 3.37 GHz 1.5 GHz
Overclocked clock speed (Air) 3.42 GHz 1.51 GHz

power consumption

Typical power consumption 52.81W N/A
Intel Core i3 2120
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AMD Athlon XP 1800+
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