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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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Much higher clock speed 2.13 GHz vs 1.42 GHz 50% higher clock speed
Much more l3 cache 24 MB vs 12 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
Much more l2 cache 4 MB vs 2 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 8 vs 2 6 more cores; run more applications at once
More threads 16 vs 4 12 more threads
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
Supports more CPUs in SMP configuration 8 vs 4 Twice as many CPUs in SMP configuration
Newer Nov, 2012 vs Oct, 2007 Release date over 5 years later
Front view of Intel Itanium 9120N

Reasons to consider the
Intel Itanium 9120N

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Much more l3 cache per core 6 MB/core vs 3 MB/core 2x more l3 cache per core
Much lower typical power consumption 84.5W vs 138.13W Around 40% lower typical power consumption
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Much lower annual commercial energy cost 91.1 $/year vs 148.92 $/year Around 40% lower annual commercial energy cost
Much lower annual home energy cost 25.05 $/year vs 40.95 $/year Around 40% lower annual home energy cost

Features Key features of the Itanium 9540  vs 9120N 

clock speed

Itanium 9540
2.13 GHz
Itanium 9120N
1.42 GHz

L2 cache

L3 cache

TDP

Specifications Full list of technical specs

summary

Itanium 9540  vs
9120N 
Clock speed 2.13 GHz 1.42 GHz
Cores Octa core Dual core

features

Has a NX bit Yes No
Has virtualization support Yes Yes
Supports dynamic frequency scaling Yes No

power consumption

TDP 170W 104W
Annual home energy cost 40.95 $/year 25.05 $/year
Annual commercial energy cost 148.92 $/year 91.1 $/year
Typical power consumption 138.13W 84.5W

bus

Architecture QPI FSB
Number of links 1 1
Clock speed 3,200 MHz 533 MHz

details

Itanium 9540  vs
9120N 
Threads 16 4
L2 cache 4 MB 2 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 24 MB 12 MB
L3 cache per core 3 MB/core 6 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 8 4

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
Intel Itanium 9540
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Intel Itanium 9120N
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