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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
Front view of AMD Sempron PCs 40

Reasons to consider the
AMD Sempron PCs 40

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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

Benchmarks Real world tests of Atom D525 vs Sempron PCs 40

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Atom D525  vs
Sempron PCs 40 
Clock speed 1.8 GHz 2 GHz
Cores Dual core Single core
Is unlocked Yes No

features

Has a NX bit Yes Yes
Has virtualization support No No
Instruction set extensions
SSE2
MMX
SSE3
SSE
3DNow!
Supplemental SSE3
Supports dynamic frequency scaling No Yes

power consumption

TDP 13W 25W
Annual home energy cost 3.13 $/year 6.02 $/year
Performance per watt 2.62 pt/W 1.56 pt/W
Typical power consumption 10.56W 20.31W

details

Atom D525  vs
Sempron PCs 40 
Architecture x86-64 x86-64
Threads 4 1
L2 cache 1 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 45 nm 65 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.12 GHz 2.03 GHz
Overclocked clock speed (Water) 1.8 GHz 2 GHz
Overclocked clock speed (Air) 2.12 GHz 2.03 GHz

integrated graphics

GPU GPU None
Label Integrated N/A
Intel Atom D525
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AMD Sempron PCs 40
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