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Differences What are the advantages of each

Front view of Intel Core2 Quad Q9450S

Reasons to consider the
Intel Core2 Quad Q9450S

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Much more l2 cache 12 MB vs 0.5 MB 24x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 3 MB/core vs 0.25 MB/core 12x more l2 cache per core
More cores 4 vs 2 Twice as many cores; run more applications at once
Front view of Intel Core i5 3230M

Reasons to consider the
Intel Core i5 3230M

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Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly lower typical power consumption 28.44W vs 52.81W More than 45% lower typical power consumption
Newer Jan, 2013 vs Jan, 2008 Release date over 5 years later
Significantly lower annual home energy cost 8.43 $/year vs 15.66 $/year More than 45% lower annual home energy cost
Significantly lower annual commercial energy cost 30.66 $/year vs 56.94 $/year More than 45% lower annual commercial energy cost

Features Key features of the Core2 Quad Q9450S  vs Core i5 3230M 

clock speed

Core i5 3230M
2.6 GHz

L2 cache

Specifications Full list of technical specs

summary

Core2 Quad Q9450S  vs
Core i5 3230M 
Clock speed 2.67 GHz 2.6 GHz
Cores Quad core Dual core
Socket type
LGA 775
rPGA 988B

features

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

details

Core2 Quad Q9450S  vs
Core i5 3230M 
Threads 4 4
L2 cache 12 MB 0.5 MB
L2 cache per core 3 MB/core 0.25 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 1 1

power consumption

TDP 65W 35W
Annual home energy cost 15.66 $/year 8.43 $/year
Annual commercial energy cost 56.94 $/year 30.66 $/year
Typical power consumption 52.81W 28.44W
Intel Core2 Quad Q9450S
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Intel Core i5 3230M
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