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Differences What are the advantages of each

Front view of Intel Xeon E5345

Reasons to consider the
Intel Xeon E5345

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Much more l2 cache 8 MB vs 4 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 4 vs 2 Twice as many cores; run more applications at once
Much lower typical power consumption 65W vs 105.63W Around 40% lower typical power consumption
Much lower annual commercial energy cost 70.08 $/year vs 113.88 $/year Around 40% lower annual commercial energy cost
Much lower annual home energy cost 19.27 $/year vs 31.32 $/year Around 40% lower annual home energy cost
Front view of Intel Xeon 5080

Reasons to consider the
Intel Xeon 5080

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Much higher clock speed 3.73 GHz vs 2.33 GHz More than 60% higher clock speed
Much better overclocked clock speed (Air) 4.33 GHz vs 2.7 GHz More than 60% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3.73 GHz vs 2.33 GHz More than 60% better overclocked clock speed (Water)

Features Key features of the Xeon E5345  vs 5080 

clock speed

Xeon E5345
2.33 GHz
Xeon 5080
3.73 GHz

L2 cache

Xeon E5345
8 MB
Xeon 5080
4 MB

overclocked clock speed (air)

Xeon E5345
2.7 GHz
Xeon 5080
4.33 GHz

overclocked clock speed (water)

Xeon E5345
2.33 GHz
Xeon 5080
3.73 GHz

TDP

Specifications Full list of technical specs

summary

Xeon E5345  vs
5080 
Clock speed 2.33 GHz 3.73 GHz
Cores Quad core Dual 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
MMX
SSE
SSE2
SSE3
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 80W 130W
Annual home energy cost 19.27 $/year 31.32 $/year
Annual commercial energy cost 70.08 $/year 113.88 $/year
Typical power consumption 65W 105.63W

bus

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

details

Xeon E5345  vs
5080 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 8 MB 4 MB
L2 cache per core 2 MB/core 2 MB/core
Manufacture process 65 nm 65 nm
Transistor count 582,000,000 376,000,000
Max CPUs 2 2
Clock multiplier 7 14
Voltage range 1 - 1.5V 1.07 - 1.35V
Operating temperature Unknown - 66°C Unknown - 78°C

overclocking

Overclocked clock speed 2.7 GHz 4.33 GHz
Overclocked clock speed (Water) 2.33 GHz 3.73 GHz
Overclocked clock speed (Air) 2.7 GHz 4.33 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 E5345
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Intel Xeon 5080
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