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Differences What are the advantages of each

Front view of Intel Core2 Duo E8400

Reasons to consider the
Intel Core2 Duo E8400

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Much higher clock speed 3 GHz vs 2.7 GHz More than 10% higher clock speed
Front view of AMD Athlon II X3 2.7 GHz

Reasons to consider the
AMD Athlon II X3 2.7 GHz

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More cores 3 vs 2 1 more cores; run more applications at once
More threads 3 vs 2 1 more threads

Features Key features of the Core2 Duo E8400  vs Athlon II X3 2.7 GHz 

clock speed

Specifications Full list of technical specs

summary

Core2 Duo E8400  vs
Athlon II X3 2.7 GHz 
Clock speed 3 GHz 2.7 GHz
Cores Dual core Tri core

features

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

details

Core2 Duo E8400  vs
Athlon II X3 2.7 GHz 
Threads 2 3
L2 cache 6 MB 2 MB
L2 cache per core 3 MB/core 0.67 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 1

power consumption

Typical power consumption 52.81W N/A

bus

Clock speed 1,333 MHz 2,000 MHz
Intel Core2 Duo E8400
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AMD Athlon II X3 2.7 GHz
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