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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 newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.67 GHz vs 2.4 GHz More than 10% higher clock speed
Much lower typical power consumption 52.81W vs 85.31W Around 40% lower typical power consumption
Much lower annual commercial energy cost 56.94 $/year vs 91.98 $/year Around 40% lower annual commercial energy cost
Much lower annual home energy cost 15.66 $/year vs 25.29 $/year Around 40% lower annual home energy cost
Newer Jan, 2008 vs Jan, 2007 Release date a year later
Front view of Intel Core2 Quad Q6600

Reasons to consider the
Intel Core2 Quad Q6600

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Much better overclocked clock speed (Air) 3.52 GHz vs 2.67 GHz More than 30% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.6 GHz vs 2.67 GHz More than 35% better overclocked clock speed (Water)

Features Key features of the Core2 Quad Q9450S  vs Q6600 

clock speed

L2 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Core2 Quad Q9450S  vs
Q6600 
Clock speed 2.67 GHz 2.4 GHz
Cores Quad core Quad core
Socket type
LGA 775

features

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

bus

Clock speed 1,333 MHz 1,066 MHz

details

Core2 Quad Q9450S  vs
Q6600 
Threads 4 4
L2 cache 12 MB 8 MB
L2 cache per core 3 MB/core 2 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.67 GHz 3.52 GHz
Overclocked clock speed (Water) 2.67 GHz 3.6 GHz
Overclocked clock speed (Air) 2.67 GHz 3.52 GHz

power consumption

TDP 65W 105W
Annual home energy cost 15.66 $/year 25.29 $/year
Annual commercial energy cost 56.94 $/year 91.98 $/year
Typical power consumption 52.81W 85.31W
Intel Core2 Quad Q9450S
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Intel Core2 Quad Q6600
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