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Differences What are the advantages of each

Front view of Intel Xeon E3110

Reasons to consider the
Intel Xeon E3110

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Much more l2 cache 6 MB vs 2 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
Much higher clock speed 3 GHz vs 2.5 GHz 20% higher clock speed
Much more l2 cache per core 3 MB/core vs 0.5 MB/core 6x more l2 cache per core
Much better overclocked clock speed (Air) 4.25 GHz vs 2.5 GHz Around 70% better overclocked clock speed (Air)
Much better overclocked clock speed (Water) 3 GHz vs 2.5 GHz 20% better overclocked clock speed (Water)
Front view of AMD Opteron 8381 HE

Reasons to consider the
AMD Opteron 8381 HE

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More cores 4 vs 2 Twice as many cores; run more applications at once
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
More threads 4 vs 2 Twice as many threads
Lower typical power consumption 44.69W vs 52.81W More than 15% lower typical power consumption
Newer Apr, 2009 vs Jan, 2008 Release date over 1 years later
Lower annual commercial energy cost 48.18 $/year vs 56.94 $/year More than 15% lower annual commercial energy cost
Lower annual home energy cost 13.25 $/year vs 15.66 $/year More than 15% lower annual home energy cost

Features Key features of the Xeon E3110  vs Opteron 8381 HE 

clock speed

Xeon E3110
3 GHz
Opteron 8381 HE
2.5 GHz

L2 cache

overclocked clock speed (air)

Xeon E3110
4.25 GHz
Opteron 8381 HE
2.5 GHz

overclocked clock speed (water)

Xeon E3110
3 GHz
Opteron 8381 HE
2.5 GHz

Specifications Full list of technical specs

summary

Xeon E3110  vs
Opteron 8381 HE 
Clock speed 3 GHz 2.5 GHz
Cores Dual core Quad core
Socket type
LGA 775
F

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
SSE4.1
3DNow!
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 65W 55W
Annual home energy cost 15.66 $/year 13.25 $/year
Annual commercial energy cost 56.94 $/year 48.18 $/year
Typical power consumption 52.81W 44.69W

bus

Architecture FSB HyperTransport 3.0
Clock speed 1,333 MHz 2,000 MHz

details

Xeon E3110  vs
Opteron 8381 HE 
Threads 2 4
L2 cache 6 MB 2 MB
L2 cache per core 3 MB/core 0.5 MB/core
Manufacture process 45 nm 45 nm
Max CPUs 1 8
Clock multiplier 9 12
Voltage range 0.85 - 1.36V 1.32 - UnknownV
Operating temperature Unknown - 72.4°C 0 - 55°C

overclocking

Overclocked clock speed 4.25 GHz 2.5 GHz
Overclocked clock speed (Water) 3 GHz 2.5 GHz
Overclocked clock speed (Air) 4.25 GHz 2.5 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 E3110
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AMD Opteron 8381 HE
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