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Differences What are the advantages of each

Front view of Intel Xeon E5-2690

Reasons to consider the
Intel Xeon E5-2690

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Much higher clock speed 2.9 GHz vs 2.13 GHz More than 35% higher clock speed
Significantly lower typical power consumption 109.69W vs 138.13W More than 20% lower typical power consumption
Significantly lower annual commercial energy cost 118.26 $/year vs 148.92 $/year More than 20% lower annual commercial energy cost
Significantly lower annual home energy cost 32.52 $/year vs 40.95 $/year More than 20% lower annual home energy cost
Front view of Intel Itanium 9540

Reasons to consider the
Intel Itanium 9540

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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
Much more l3 cache 24 MB vs 20 MB 20% more l3 cache; more data can be stored in the l3 cache for quick access later
Supports more CPUs in SMP configuration 8 vs 2 6 supports more CPUs in SMP configuration
Much more l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core
More l3 cache per core 3 MB/core vs 2.5 MB/core 20% more l3 cache per core
Newer Nov, 2012 vs Mar, 2012 Release date 8 months later

Features Key features of the Xeon E5-2690  vs Itanium 9540 

clock speed

Xeon E5-2690
2.9 GHz
Itanium 9540
2.13 GHz

L2 cache

L3 cache

TDP

Specifications Full list of technical specs

summary

Xeon E5-2690  vs
Itanium 9540 
Clock speed 2.9 GHz 2.13 GHz
Cores Octa core Octa core
Socket type
LGA 2011
LGA 1248

features

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

power consumption

TDP 135W 170W
Annual home energy cost 32.52 $/year 40.95 $/year
Annual commercial energy cost 118.26 $/year 148.92 $/year
Typical power consumption 109.69W 138.13W

memory controller

Memory controller Built-in Built-in
Supports ECC Yes Yes

details

Xeon E5-2690  vs
Itanium 9540 
Threads 16 16
L2 cache 2 MB 4 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
L3 cache 20 MB 24 MB
L3 cache per core 2.5 MB/core 3 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 2 8

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 QPI
Number of links 2 1
Data rate 64,000 MB/s 25,600 MB/s
Transfer rate 8,000 MT/s 6,400 MT/s
Clock speed 4,000 MHz 3,200 MHz
Intel Xeon E5-2690
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Intel Itanium 9540
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