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Differences What are the advantages of each

Front view of AMD Athlon XP 1900+

Reasons to consider the
AMD Athlon XP 1900+

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CPUBoss is not aware of any important advantages of the Athlon XP 1900+ vs the Athlon X2 3800+.

Front view of AMD Athlon X2 3800+

Reasons to consider the
AMD Athlon X2 3800+

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Much more l2 cache 1 MB vs 0.25 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 90 nm vs 130 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly higher clock speed 2 GHz vs 1.6 GHz Around 25% higher clock speed
More cores 2 vs 1 Twice as many cores; run more applications at once
More threads 2 vs 1 Twice as many threads
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
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 Athlon XP 1900+  vs X2 3800+ 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Athlon XP 1900+  vs
X2 3800+ 
Clock speed 1.6 GHz 2 GHz
Cores Single core Dual core
Socket type
462
AM2
939

features

Has a NX bit No Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!

details

Athlon XP 1900+  vs
X2 3800+ 
Threads 1 2
L2 cache 0.25 MB 1 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 130 nm 90 nm
Max CPUs 1 1

power consumption

Typical power consumption N/A 52.81W
AMD Athlon XP 1900+
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AMD Athlon X2 3800+
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