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Differences What are the advantages of each

Front view of AMD Opteron 8387

Reasons to consider the
AMD Opteron 8387

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Much higher clock speed 2.8 GHz vs 2.4 GHz More than 15% higher clock speed
Supports more CPUs in SMP configuration 8 vs 1 7 supports more CPUs in SMP configuration
More l3 cache per core 1.5 MB/core vs 1 MB/core 50% more l3 cache per core
Much better overclocked clock speed (Water) 2.8 GHz vs 2.4 GHz More than 15% better overclocked clock speed (Water)
Front view of AMD Opteron 3280

Reasons to consider the
AMD Opteron 3280

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Much more l2 cache 8 MB vs 2 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
More cores 8 vs 4 Twice as many cores; run more applications at once
More l3 cache 8 MB vs 6 MB Around 35% more l3 cache; more data can be stored in the l3 cache for quick access later
More threads 8 vs 4 Twice as many threads
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 52.81W vs 60.94W Around 15% lower typical power consumption
Better overclocked clock speed (Air) 2.87 GHz vs 2.8 GHz Almost the same
Newer Mar, 2012 vs Feb, 2009 Release date over 3 years later
Lower annual commercial energy cost 56.94 $/year vs 65.7 $/year Around 15% lower annual commercial energy cost
Lower annual home energy cost 15.66 $/year vs 18.07 $/year Around 15% lower annual home energy cost

Features Key features of the Opteron 8387  vs 3280 

clock speed

Opteron 8387
2.8 GHz
Opteron 3280
2.4 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Opteron 8387
2.8 GHz
Opteron 3280
2.87 GHz

overclocked clock speed (water)

Opteron 8387
2.8 GHz
Opteron 3280
2.4 GHz

Specifications Full list of technical specs

summary

Opteron 8387  vs
3280 
Clock speed 2.8 GHz 2.4 GHz
Cores Quad core Octa core
Socket type
F
AM3+
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
3DNow!
Supplemental SSE3
AES

power consumption

TDP 75W 65W
Annual home energy cost 18.07 $/year 15.66 $/year
Annual commercial energy cost 65.7 $/year 56.94 $/year
Typical power consumption 60.94W 52.81W

bus

Architecture HyperTransport 3.0 HyperTransport 3.0
Clock speed 2,200 MHz 2,600 MHz

details

Opteron 8387  vs
3280 
Threads 4 8
L2 cache 2 MB 8 MB
L2 cache per core 0.5 MB/core 1 MB/core
L3 cache 6 MB 8 MB
L3 cache per core 1.5 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 8 1
Clock multiplier 14 12
Operating temperature 0 - 55°C Unknown - 61.1°C

overclocking

Overclocked clock speed 2.8 GHz 2.87 GHz
Overclocked clock speed (Water) 2.8 GHz 2.4 GHz
Overclocked clock speed (Air) 2.8 GHz 2.87 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 8387
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AMD Opteron 3280
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