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Differences What are the advantages of each

Front view of AMD Opteron 2431

Reasons to consider the
AMD Opteron 2431

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Much higher clock speed 2.4 GHz vs 1.8 GHz Around 35% higher clock speed
Much more l2 cache 3 MB vs 2 MB 50% more l2 cache; more data can be stored in the l2 cache for quick access later
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
More cores 6 vs 4 2 more cores; run more applications at once
Much better overclocked clock speed (Air) 2.4 GHz vs 1.8 GHz Around 35% 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
More threads 6 vs 4 2 more threads
More l3 cache per core 1 MB/core vs 0.5 MB/core 2x more l3 cache per core
Much better overclocked clock speed (Water) 2.4 GHz vs 1.8 GHz Around 35% better overclocked clock speed (Water)
Newer Jun, 2009 vs Sep, 2007 Release date over 1 years later
Front view of AMD Opteron 2346 HE

Reasons to consider the
AMD Opteron 2346 HE

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Lower typical power consumption 44.69W vs 60.94W More than 25% lower typical power consumption
Lower annual commercial energy cost 48.18 $/year vs 65.7 $/year More than 25% lower annual commercial energy cost
Lower annual home energy cost 13.25 $/year vs 18.07 $/year More than 25% lower annual home energy cost

Features Key features of the Opteron 2431  vs 2346 HE 

clock speed

Opteron 2431
2.4 GHz
Opteron 2346 HE
1.8 GHz

L2 cache

L3 cache

overclocked clock speed (air)

Opteron 2431
2.4 GHz
Opteron 2346 HE
1.8 GHz

overclocked clock speed (water)

Opteron 2431
2.4 GHz
Opteron 2346 HE
1.8 GHz

Specifications Full list of technical specs

summary

Opteron 2431  vs
2346 HE 
Clock speed 2.4 GHz 1.8 GHz
Cores Hexa 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 75W 55W
Annual home energy cost 18.07 $/year 13.25 $/year
Annual commercial energy cost 65.7 $/year 48.18 $/year
Typical power consumption 60.94W 44.69W

bus

Clock speed 2,200 MHz 1,000 MHz

details

Opteron 2431  vs
2346 HE 
Threads 6 4
L2 cache 3 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 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 2 2
Clock multiplier 12 9
Voltage range 1 - UnknownV 1.12 - UnknownV
Operating temperature 0 - 55°C 0 - 55°C

overclocking

Overclocked clock speed 2.4 GHz 1.8 GHz
Overclocked clock speed (Water) 2.4 GHz 1.8 GHz
Overclocked clock speed (Air) 2.4 GHz 1.8 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 2431
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AMD Opteron 2346 HE
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