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Differences What are the advantages of each

Front view of AMD Opteron 2439 SE

Reasons to consider the
AMD Opteron 2439 SE

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Much more l2 cache 3 MB vs 1 MB 3x more l2 cache; more data can be stored in the l2 cache for quick access later
More l3 cache 6 MB vs 0.5 MB 12x more l3 cache; more data can be stored in the l3 cache for quick access later
More cores 6 vs 2 Three times as many cores; run more applications at once
Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Significantly more l3 cache per core 1 MB/core vs 0.25 MB/core 4x more l3 cache per core
More threads 6 vs 2 Three times as many threads
Front view of AMD A4 3400

Reasons to consider the
AMD A4 3400

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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much lower typical power consumption 52.81W vs 85.31W Around 40% lower typical power consumption
Significantly higher Maximum operating temperature 71.5 °C vs 55 °C 30% higher Maximum operating temperature
Newer Sep, 2011 vs Jul, 2009 Release date over 2 years later
Much lower annual home energy cost 15.66 $/year vs 25.29 $/year Around 40% lower annual home energy cost
Much lower annual commercial energy cost 56.94 $/year vs 91.98 $/year Around 40% lower annual commercial energy cost

Features Key features of the Opteron 2439 SE  vs A4 3400 

clock speed

Opteron 2439 SE
2.8 GHz
A4 3400
2.7 GHz

L2 cache

L3 cache

A4 3400
0.5 MB

TDP

Specifications Full list of technical specs

summary

Opteron 2439 SE  vs
A4 3400 
Clock speed 2.8 GHz 2.7 GHz
Cores Hexa core Dual core
Socket type
F
FM1
Is unlocked No No

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
AMD-V
3DNow!
Supports dynamic frequency scaling Yes Yes

details

Opteron 2439 SE  vs
A4 3400 
Threads 6 2
L2 cache 3 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
L3 cache 6 MB 0.5 MB
L3 cache per core 1 MB/core 0.25 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 2 1
Voltage range 1 - UnknownV 0.91 - 1.41V
Operating temperature 0 - 55°C Unknown - 71.5°C

integrated graphics

GPU None GPU
Label N/A Radeon™ HD 6410D
Latest DirectX N/A 11.0
GPU clock speed N/A 600 MHz

power consumption

TDP 105W 65W
Annual home energy cost 25.29 $/year 15.66 $/year
Annual commercial energy cost 91.98 $/year 56.94 $/year
Typical power consumption 85.31W 52.81W
AMD Opteron 2439 SE
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AMD A4 3400
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