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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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Significantly higher clock speed 1.8 GHz vs 1 GHz 80% higher clock speed
Significantly better overclocked clock speed (Air) 2.12 GHz vs 1 GHz More than 2x better overclocked clock speed (Air)
More threads 4 vs 2 Twice as many threads
Better overclocked clock speed (Water) 1.8 GHz vs 1 GHz 80% better overclocked clock speed (Water)
Front view of AMD G G-T40N

Reasons to consider the
AMD G G-T40N

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Supports dynamic frequency scaling Yes vs No Somewhat common; Allows for maximum performance when needed, while conserving power and minimizing heat production when not needed
Has virtualization support Yes vs No Somewhat common; Boosts performance of virtual machines
Newer manufacturing process 40 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Newer Jan, 2011 vs Jun, 2010 Release date 7 months later

Benchmarks Real world tests of Atom D525 vs G G-T40N

PassMark Data courtesy Passmark

Specifications Full list of technical specs

summary

Atom D525  vs
G G-T40N 
Clock speed 1.8 GHz 1 GHz
Cores Dual core Dual core

features

Has a NX bit Yes Yes
Has virtualization support No Yes
Instruction set extensions
SSE4a
SSE2
MMX
SSE3
SSE
AMD64
AMD-V
Supplemental SSE3
Supports dynamic frequency scaling No Yes

power consumption

TDP 13W 9W
Annual home energy cost 3.13 $/year 2.17 $/year
Annual commercial energy cost 11.39 $/year 7.88 $/year
Performance per watt 2.62 pt/W 2.34 pt/W
Typical power consumption 10.56W 7.31W

details

Atom D525  vs
G G-T40N 
Threads 4 2
L2 cache 1 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 45 nm 40 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.12 GHz 1 GHz
Overclocked clock speed (Water) 1.8 GHz 1 GHz
Overclocked clock speed (Air) 2.12 GHz 1 GHz

integrated graphics

GPU GPU GPU
Label Integrated AMD Radeon HD 6250HD 6290

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3
DDR3-800
DDR2-800
DDR2-667
DDR2
Channels Single Channel Single Channel
Maximum bandwidth 6,400 MB/s 8,533.33 MB/s
Intel Atom D525
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AMD G G-T40N
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