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Differences What are the advantages of each

Front view of AMD Opteron 8381 HE

Reasons to consider the
AMD Opteron 8381 HE

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Much higher clock speed 2.5 GHz vs 1.9 GHz More than 30% higher clock speed
Much more l3 cache 6 MB vs 2 MB 3x more l3 cache; more data can be stored in the l3 cache for quick access later
Much better overclocked clock speed (Air) 2.5 GHz vs 1.9 GHz More than 30% better overclocked clock speed (Air)
Newer manufacturing process 45 nm vs 65 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l3 cache per core 1.5 MB/core vs 0.5 MB/core 3x more l3 cache per core
Much better overclocked clock speed (Water) 2.5 GHz vs 1.9 GHz More than 30% better overclocked clock speed (Water)
Newer Apr, 2009 vs Sep, 2007 Release date over 1 years later
Front view of AMD Opteron 8347 HE

Reasons to consider the
AMD Opteron 8347 HE

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CPUBoss is not aware of any important advantages of the 8347 HE vs the 8381 HE.

Features Key features of the Opteron 8381 HE  vs 8347 HE 

clock speed

L2 cache

L3 cache

overclocked clock speed (air)

overclocked clock speed (water)

Specifications Full list of technical specs

summary

Opteron 8381 HE  vs
8347 HE 
Clock speed 2.5 GHz 1.9 GHz
Cores Quad core Quad core
Socket type
F
Is unlocked No No

features

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

power consumption

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

bus

Clock speed 2,000 MHz 1,600 MHz

details

Opteron 8381 HE  vs
8347 HE 
Threads 4 4
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 6 MB 2 MB
L3 cache per core 1.5 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 8 8
Clock multiplier 12 9
Voltage range 1.32 - UnknownV 1.12 - UnknownV
Operating temperature 0 - 55°C 0 - 55°C

overclocking

Overclocked clock speed 2.5 GHz 1.9 GHz
Overclocked clock speed (Water) 2.5 GHz 1.9 GHz
Overclocked clock speed (Air) 2.5 GHz 1.9 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
AMD Opteron 8381 HE
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AMD Opteron 8347 HE
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