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Differences What are the advantages of each

Front view of Intel Itanium 9540

Reasons to consider the
Intel Itanium 9540

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Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More threads 16 vs 4 12 more threads
More cores 8 vs 4 Twice as many cores; run more applications at once
Newer Nov, 2012 vs Jul, 2008 Release date over 4 years later
Front view of Intel Core2 Quad Q9400

Reasons to consider the
Intel Core2 Quad Q9400

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Much more l2 cache 6 MB vs 4 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Higher clock speed 2.66 GHz vs 2.13 GHz Around 25% higher clock speed
Much lower typical power consumption 77.19W vs 138.13W Around 45% lower typical power consumption
Much more l2 cache per core 1.5 MB/core vs 0.5 MB/core 3x more l2 cache per core
Much lower annual home energy cost 22.89 $/year vs 40.95 $/year Around 45% lower annual home energy cost
Much lower annual commercial energy cost 83.22 $/year vs 148.92 $/year Around 45% lower annual commercial energy cost

Features Key features of the Itanium 9540  vs Core2 Quad Q9400 

clock speed

Itanium 9540
2.13 GHz
Core2 Quad Q9400
2.66 GHz

L2 cache

Specifications Full list of technical specs

summary

Itanium 9540  vs
Core2 Quad Q9400 
Clock speed 2.13 GHz 2.66 GHz
Cores Octa core Quad core
Socket type
LGA 1248
LGA 775

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 170W 95W
Annual home energy cost 40.95 $/year 22.89 $/year
Annual commercial energy cost 148.92 $/year 83.22 $/year
Typical power consumption 138.13W 77.19W

details

Itanium 9540  vs
Core2 Quad Q9400 
Threads 16 4
L2 cache 4 MB 6 MB
L2 cache per core 0.5 MB/core 1.5 MB/core
Manufacture process 32 nm 45 nm
Max CPUs 8 1

integrated graphics

GPU None None
Label N/A N/A
Latest DirectX N/A N/A
Number of displays supported N/A N/A
GPU clock speed N/A N/A
Turbo clock speed N/A N/A
3DMark06 N/A N/A

bus

Architecture QPI FSB
Number of links 1 1
Clock speed 3,200 MHz 1,333 MHz
Intel Itanium 9540
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Intel Core2 Quad Q9400
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