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Differences What are the advantages of each

Front view of AMD Opteron 3280

Reasons to consider the
AMD Opteron 3280

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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
Much more l3 cache 8 MB vs 4 MB 2x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 8 vs 4 Twice as many cores; run more applications at once
More threads 8 vs 4 Twice as many threads
Much better overclocked clock speed (Air) 2.87 GHz vs 2.5 GHz Around 15% better overclocked clock speed (Air)
Front view of AMD Opteron 3250 HE

Reasons to consider the
AMD Opteron 3250 HE

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Higher clock speed 2.5 GHz vs 2.4 GHz Around 5% higher clock speed
Higher turbo clock speed 3.5 GHz vs 3.4 GHz Around 5% higher turbo clock speed
Lower typical power consumption 36.56W vs 52.81W More than 30% lower typical power consumption
Lower annual commercial energy cost 39.42 $/year vs 56.94 $/year More than 30% lower annual commercial energy cost
Lower annual home energy cost 10.84 $/year vs 15.66 $/year More than 30% lower annual home energy cost
Better overclocked clock speed (Water) 2.5 GHz vs 2.4 GHz Around 5% better overclocked clock speed (Water)

Features Key features of the Opteron 3280  vs 3250 HE 

clock speed

Opteron 3280
2.4 GHz
Opteron 3250 HE
2.5 GHz

turbo clock speed

Opteron 3280
3.4 GHz
Opteron 3250 HE
3.5 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Opteron 3280
2.87 GHz
Opteron 3250 HE
2.5 GHz

overclocked clock speed (water)

Opteron 3280
2.4 GHz
Opteron 3250 HE
2.5 GHz

Specifications Full list of technical specs

summary

Opteron 3280  vs
3250 HE 
Clock speed 2.4 GHz 2.5 GHz
Turbo clock speed 3.4 GHz 3.5 GHz
Cores Octa core Quad core
Socket type
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
Supplemental SSE3
AES

power consumption

TDP 65W 45W
Annual home energy cost 15.66 $/year 10.84 $/year
Annual commercial energy cost 56.94 $/year 39.42 $/year
Typical power consumption 52.81W 36.56W

bus

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

details

Opteron 3280  vs
3250 HE 
Threads 8 4
L2 cache 8 MB 4 MB
L2 cache per core 1 MB/core 1 MB/core
L3 cache 8 MB 4 MB
L3 cache per core 1 MB/core 1 MB/core
Manufacture process 32 nm 32 nm
Max CPUs 1 1
Clock multiplier 12 12

overclocking

Overclocked clock speed 2.87 GHz 2.5 GHz
Overclocked clock speed (Water) 2.4 GHz 2.5 GHz
Overclocked clock speed (Air) 2.87 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
AMD Opteron 3280
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AMD Opteron 3250 HE
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