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Differences What are the advantages of each

Front view of Intel Xeon E5-2609

Reasons to consider the
Intel Xeon E5-2609

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Much higher clock speed 2.4 GHz vs 1.4 GHz More than 70% higher clock speed
Much newer manufacturing process 32 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More cores 4 vs 2 Twice as many cores; run more applications at once
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 trusted computing Yes vs No Somewhat common; Allows for safer, more reliable computing
Lower typical power consumption 65W vs 84.5W Around 25% lower typical power consumption
Newer Mar, 2012 vs Jul, 2006 Release date over 5 years later
Lower annual commercial energy cost 70.08 $/year vs 91.1 $/year Around 25% lower annual commercial energy cost
Lower annual home energy cost 19.27 $/year vs 25.05 $/year Around 25% lower annual home energy cost
Front view of Intel Itanium 9015

Reasons to consider the
Intel Itanium 9015

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Much more l2 cache 12 MB vs 1 MB 12x more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 6 MB/core vs 0.25 MB/core 24x more l2 cache per core
Much more l3 cache per core 6 MB/core vs 2.5 MB/core Around 2.5x more l3 cache per core
More l3 cache 12 MB vs 10 MB 20% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration

Features Key features of the Xeon E5-2609  vs Itanium 9015 

clock speed

Xeon E5-2609
2.4 GHz
Itanium 9015
1.4 GHz

L2 cache

L3 cache

TDP

Specifications Full list of technical specs

summary

Xeon E5-2609  vs
Itanium 9015 
Clock speed 2.4 GHz 1.4 GHz
Cores Quad core Dual core

features

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

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 2 1
Clock speed 3,200 MHz 533 MHz

details

Xeon E5-2609  vs
Itanium 9015 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 12 MB
L2 cache per core 0.25 MB/core 6 MB/core
L3 cache 10 MB 12 MB
L3 cache per core 2.5 MB/core 6 MB/core
Manufacture process 32 nm 90 nm
Max CPUs 2 4
Clock multiplier 24 14
Voltage range 0.6 - 1.35V 1.09 - 1.25V
Operating temperature Unknown - 70°C Unknown - 76°C

power consumption

TDP 80W 104W
Annual home energy cost 19.27 $/year 25.05 $/year
Annual commercial energy cost 70.08 $/year 91.1 $/year
Typical power consumption 65W 84.5W

memory controller

Memory controller Built-in Built-in
Supports ECC Yes No
Intel Xeon E5-2609
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Intel Itanium 9015
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