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Differences What are the advantages of each

Front view of Intel Atom D525

Reasons to consider the
Intel Atom D525

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Is unlocked Yes vs No Somewhat common; An unlocked multiplier allows for easier overclocking
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Much lower typical power consumption 10.56W vs 52.81W 5x lower typical power consumption
Much lower annual home energy cost 3.13 $/year vs 15.66 $/year 5x lower annual home energy cost
Much lower annual commercial energy cost 11.39 $/year vs 56.94 $/year 5x lower annual commercial energy cost
Front view of AMD Opteron 4230 HE

Reasons to consider the
AMD Opteron 4230 HE

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Much more l2 cache 6 MB vs 1 MB 6x more l2 cache; more data can be stored in the l2 cache for quick access later
Significantly higher clock speed 2.9 GHz vs 1.8 GHz More than 60% higher clock speed
Much newer manufacturing process 32 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
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
Much more l2 cache per core 1 MB/core vs 0.5 MB/core 2x more l2 cache per core
Better overclocked clock speed (Air) 2.9 GHz vs 2.12 GHz More than 35% better overclocked clock speed (Air)
More threads 6 vs 4 2 more threads
Newer Jun, 2012 vs Jun, 2010 Release date over 1 years later
Significantly better overclocked clock speed (Water) 2.9 GHz vs 1.8 GHz More than 60% better overclocked clock speed (Water)

Features Key features of the Atom D525  vs Opteron 4230 HE 

clock speed

Atom D525
1.8 GHz
Opteron 4230 HE
2.9 GHz

L2 cache

overclocked clock speed (air)

Atom D525
2.12 GHz
Opteron 4230 HE
2.9 GHz

overclocked clock speed (water)

Atom D525
1.8 GHz
Opteron 4230 HE
2.9 GHz

Specifications Full list of technical specs

summary

Atom D525  vs
Opteron 4230 HE 
Clock speed 1.8 GHz 2.9 GHz
Cores Dual core Hexa core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE4
SSE3
SSE
Supplemental SSE3
AES

power consumption

TDP 13W 65W
Annual home energy cost 3.13 $/year 15.66 $/year
Annual commercial energy cost 11.39 $/year 56.94 $/year
Typical power consumption 10.56W 52.81W

bus

Architecture DMI HyperTransport 3.0
Number of links 1 2
Transfer rate 2,500 MT/s 6,400 MT/s

details

Atom D525  vs
Opteron 4230 HE 
Threads 4 6
L2 cache 1 MB 6 MB
L2 cache per core 0.5 MB/core 1 MB/core
Manufacture process 45 nm 32 nm
Max CPUs 1 2

overclocking

Overclocked clock speed 2.12 GHz 2.9 GHz
Overclocked clock speed (Water) 1.8 GHz 2.9 GHz
Overclocked clock speed (Air) 2.12 GHz 2.9 GHz

integrated graphics

GPU GPU None
Label Integrated N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
DDR3-800
DDR2-800
DDR2-667
DDR2
Intel Atom D525
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AMD Opteron 4230 HE
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