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Differences What are the advantages of each

Front view of Intel Xeon E5520

Reasons to consider the
Intel Xeon E5520

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More cores 4 vs 2 Twice as many cores; run more applications at once
Much lower typical power consumption 65W vs 121.88W More than 45% lower typical power consumption
More threads 8 vs 4 Twice as many threads
Newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much better overclocked clock speed (Water) 4.27 GHz vs 3.17 GHz Around 35% better overclocked clock speed (Water)
Better overclocked clock speed (Air) 3.28 GHz vs 3.17 GHz Around 5% better overclocked clock speed (Air)
Much lower annual commercial energy cost 70.08 $/year vs 131.4 $/year More than 45% lower annual commercial energy cost
Much lower annual home energy cost 19.27 $/year vs 36.13 $/year More than 45% lower annual home energy cost
Newer Mar, 2009 vs Aug, 2006 Release date over 2 years later
Front view of Intel Xeon 7130N

Reasons to consider the
Intel Xeon 7130N

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Much more l2 cache 8 MB vs 1 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3.16 GHz vs 2.26 GHz Around 40% higher clock speed
Much more l2 cache per core 4 MB/core vs 0.25 MB/core 16x more l2 cache per core
Supports more CPUs in SMP configuration 32 vs 2 30 supports more CPUs in SMP configuration
Much more l3 cache per core 4 MB/core vs 2 MB/core 2x more l3 cache per core

Features Key features of the Xeon E5520  vs 7130N 

clock speed

Xeon E5520
2.26 GHz
Xeon 7130N
3.16 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Xeon E5520
3.28 GHz
Xeon 7130N
3.17 GHz

overclocked clock speed (water)

Xeon E5520
4.27 GHz
Xeon 7130N
3.17 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5520  vs
7130N 
Clock speed 2.26 GHz 3.16 GHz
Cores Quad core Dual core
Socket type
LGA 1366
604

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

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 E5520  vs
7130N 
Architecture x86-64 x86-64
Threads 8 4
L2 cache 1 MB 8 MB
L2 cache per core 0.25 MB/core 4 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 4 MB/core
Manufacture process 45 nm 65 nm
Transistor count 731,000,000 1,328,000,000
Max CPUs 2 32
Clock multiplier 17 19
Voltage range 0.75 - 1.35V 1.1 - 1.35V
Operating temperature Unknown - 72°C Unknown - 69°C

overclocking

Overclocked clock speed 3.28 GHz 3.17 GHz
Overclocked clock speed (Water) 4.27 GHz 3.17 GHz
Overclocked clock speed (Air) 3.28 GHz 3.17 GHz

power consumption

TDP 80W 150W
Annual home energy cost 19.27 $/year 36.13 $/year
Annual commercial energy cost 70.08 $/year 131.4 $/year
Typical power consumption 65W 121.88W

bus

Architecture QPI FSB
Number of links 2 1
Clock speed 2,930 MHz 667 MHz
Intel Xeon E5520
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Intel Xeon 7130N
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