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Differences What are the advantages of each

Front view of Intel Xeon L5420

Reasons to consider the
Intel Xeon L5420

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Much more l2 cache 12 MB vs 8 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 2.5 GHz vs 1.6 GHz More than 55% higher clock speed
Much better overclocked clock speed (Air) 3.67 GHz vs 1.6 GHz More than 2.2x better overclocked clock speed (Air)
Much more l2 cache per core 3 MB/core vs 2 MB/core 50% more l2 cache per core
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) 3.85 GHz vs 1.6 GHz Around 2.5x better overclocked clock speed (Water)
Newer Mar, 2008 vs Jan, 2007 Release date over 1 years later
Front view of Intel Xeon L5318

Reasons to consider the
Intel Xeon L5318

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Lower typical power consumption 32.5W vs 40.63W 20% lower typical power consumption
Lower annual commercial energy cost 35.04 $/year vs 43.8 $/year Around 20% lower annual commercial energy cost
Lower annual home energy cost 9.64 $/year vs 12.04 $/year More than 20% lower annual home energy cost

Features Key features of the Xeon L5420  vs L5318 

clock speed

Xeon L5420
2.5 GHz
Xeon L5318
1.6 GHz

L2 cache

Xeon L5420
12 MB
Xeon L5318
8 MB

overclocked clock speed (air)

Xeon L5420
3.67 GHz
Xeon L5318
1.6 GHz

overclocked clock speed (water)

Xeon L5420
3.85 GHz
Xeon L5318
1.6 GHz

TDP

Specifications Full list of technical specs

summary

Xeon L5420  vs
L5318 
Clock speed 2.5 GHz 1.6 GHz
Cores Quad core Quad core
Socket type
LGA 771

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
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 50W 40W
Annual home energy cost 12.04 $/year 9.64 $/year
Annual commercial energy cost 43.8 $/year 35.04 $/year
Typical power consumption 40.63W 32.5W

bus

Architecture FSB FSB
Number of links 1 1
Clock speed 1,333 MHz 1,066 MHz

details

Xeon L5420  vs
L5318 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 12 MB 8 MB
L2 cache per core 3 MB/core 2 MB/core
Manufacture process 45 nm 65 nm
Transistor count 820,000,000 582,000,000
Max CPUs 2 2
Voltage range 0.85 - 1.35V 0.9 - 1.25V
Operating temperature Unknown - 57°C Unknown - 72.2°C

overclocking

Overclocked clock speed 3.67 GHz 1.6 GHz
Overclocked clock speed (Water) 3.85 GHz 1.6 GHz
Overclocked clock speed (Air) 3.67 GHz 1.6 GHz

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
Intel Xeon L5420
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Intel Xeon L5318
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