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Differences What are the advantages of each

Front view of Intel Xeon E5 2620 v2

Reasons to consider the
Intel Xeon E5 2620 v2

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Much higher clock speed 2.1 GHz vs 1.42 GHz Around 50% higher clock speed
More cores 6 vs 2 Three times as many cores; run more applications at once
Much newer manufacturing process 22 nm vs 90 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Significantly more l3 cache 15 MB vs 12 MB 25% more l3 cache; more data can be stored in the l3 cache for quick access later
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
More threads 12 vs 4 Three times as many threads
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 Jul, 2013 vs Oct, 2007 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 9120N

Reasons to consider the
Intel Itanium 9120N

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Much more l3 cache per core 6 MB/core vs 2.5 MB/core Around 2.5x more l3 cache per core
More l2 cache 2 MB vs 1.5 MB Around 35% more l2 cache; more data can be stored in the l2 cache for quick access later
Much more l2 cache per core 1 MB/core vs 0.25 MB/core 4x more l2 cache per core
Supports more CPUs in SMP configuration 4 vs 2 Twice as many CPUs in SMP configuration

Features Key features of the Xeon E5 2620 v2  vs Itanium 9120N 

clock speed

Xeon E5 2620 v2
2.1 GHz
Itanium 9120N
1.42 GHz

L2 cache

L3 cache

Specifications Full list of technical specs

summary

Xeon E5 2620 v2  vs
Itanium 9120N 
Clock speed 2.1 GHz 1.42 GHz
Cores Hexa 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

details

Xeon E5 2620 v2  vs
Itanium 9120N 
Architecture x86-64 x86-64
Threads 12 4
L2 cache 1.5 MB 2 MB
L2 cache per core 0.25 MB/core 1 MB/core
L3 cache 15 MB 12 MB
L3 cache per core 2.5 MB/core 6 MB/core
Manufacture process 22 nm 90 nm
Max CPUs 2 4
Operating temperature Unknown - 71°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

bus

Architecture QPI FSB
Number of links 2 1
Clock speed 3,600 MHz 533 MHz
Intel Xeon E5 2620 v2
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Intel Itanium 9120N
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