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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 more l2 cache 4 MB vs 1 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
Significantly more l3 cache 24 MB vs 10 MB Around 2.5x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 8 vs 4 Twice as many cores; run more applications at once
More threads 16 vs 8 Twice as many threads
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
Significantly lower annual home energy cost 40.95 $/year vs 49.49 $/year More than 15% lower annual home energy cost
Newer Nov, 2012 vs Feb, 2012 Release date 9 months later
Front view of Intel Core i7 3820

Reasons to consider the
Intel Core i7 3820

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Much higher clock speed 3.6 GHz vs 2.13 GHz Around 70% higher clock speed
Lower annual commercial energy cost 138.93 $/year vs 148.92 $/year More than 5% lower annual commercial energy cost

Features Key features of the Itanium 9540  vs Core i7 3820 

clock speed

Itanium 9540
2.13 GHz
Core i7 3820
3.6 GHz

L2 cache

L3 cache

TDP

Specifications Full list of technical specs

summary

Itanium 9540  vs
Core i7 3820 
Clock speed 2.13 GHz 3.6 GHz
Cores Octa core Quad core
Socket type
LGA 1248
LGA 2011

features

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

power consumption

TDP 170W 130W
Annual home energy cost 40.95 $/year 49.49 $/year
Annual commercial energy cost 148.92 $/year 138.93 $/year
Typical power consumption 138.13W 139.6W

memory controller

Memory controller Built-in Built-in
Supports ECC Yes No

details

Itanium 9540  vs
Core i7 3820 
Threads 16 8
L2 cache 4 MB 1 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
L3 cache 24 MB 10 MB
L3 cache per core 3 MB/core 2.5 MB/core
Manufacture process 32 nm 32 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 DMI 2.0
Number of links 1 1
Transfer rate 6,400 MT/s 5,000 MT/s
Intel Itanium 9540
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Intel Core i7 3820
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