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Differences What are the advantages of each

Front view of Intel Xeon LC5528

Reasons to consider the
Intel Xeon LC5528

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Lower typical power consumption 48.75W vs 65W 25% lower typical power consumption
Lower annual commercial energy cost 52.56 $/year vs 70.08 $/year Around 25% lower annual commercial energy cost
Lower annual home energy cost 14.45 $/year vs 19.27 $/year Around 25% lower annual home energy cost
Newer Feb, 2010 vs Mar, 2009 Release date 10 months later
Front view of Intel Xeon E5520

Reasons to consider the
Intel Xeon E5520

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Higher clock speed 2.26 GHz vs 2.13 GHz More than 5% higher clock speed

Features Key features of the Xeon LC5528  vs E5520 

clock speed

Xeon LC5528
2.13 GHz
Xeon E5520
2.26 GHz

turbo clock speed

Xeon LC5528
2.53 GHz
Xeon E5520
2.53 GHz

L2 cache

L3 cache


Specifications Full list of technical specs


Xeon LC5528  vs
Clock speed 2.13 GHz 2.26 GHz
Turbo clock speed 2.53 GHz 2.53 GHz
Cores Quad core Quad core
Socket type
LGA 1366


Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
Supplemental SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 60W 80W
Annual home energy cost 14.45 $/year 19.27 $/year
Annual commercial energy cost 52.56 $/year 70.08 $/year
Typical power consumption 48.75W 65W


Architecture QPI QPI
Number of links 1 2
Data rate 19,200 MB/s 46,928 MB/s
Transfer rate 4,800 MT/s 5,860 MT/s
Clock speed 2,400 MHz 2,930 MHz


Xeon LC5528  vs
Architecture x86-64 x86-64
Threads 8 8
L2 cache 1 MB 1 MB
L2 cache per core 0.25 MB/core 0.25 MB/core
L3 cache 8 MB 8 MB
L3 cache per core 2 MB/core 2 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 2 2
Voltage range 1 - 1.5V 0.75 - 1.35V
Operating temperature Unknown - 70°C Unknown - 72°C

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

memory controller

Memory controller Built-in Built-in
Channels Triple Channel Triple Channel
Supports ECC Yes Yes
Intel Xeon LC5528
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Intel Xeon E5520
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