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Differences What are the advantages of each

Front view of Intel Xeon D-1518

Reasons to consider the
Intel Xeon D-1518

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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
Significantly newer manufacturing process 14 nm vs 22 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Higher clock speed 2.2 GHz vs 2 GHz More than 10% higher clock speed
Newer Oct, 2015 vs Jul, 2013 Release date over 2 years later
Supports more RAM 131,072 MB vs 32,768 MB Supports 4x more RAM
Slightly better overclocked clock speed (Air) 2.2 GHz vs 2 GHz More than 10% better overclocked clock speed (Air)
Slightly better overclocked clock speed (Water) 2.2 GHz vs 2 GHz More than 10% better overclocked clock speed (Water)
Front view of Intel Atom C2718

Reasons to consider the
Intel Atom C2718

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More cores 8 vs 4 Twice as many cores; run more applications at once
Lower typical power consumption 14.63W vs 28.44W Around 50% lower typical power consumption
Lower annual home energy cost 4.34 $/year vs 8.43 $/year Around 50% lower annual home energy cost
Lower annual commercial energy cost 15.77 $/year vs 30.66 $/year Around 50% lower annual commercial energy cost

Features Key features of the Xeon D-1518  vs Atom C2718 

clock speed

Xeon D-1518
2.2 GHz
Atom C2718
2 GHz

overclocked clock speed (air)

Xeon D-1518
2.2 GHz
Atom C2718
2 GHz

overclocked clock speed (water)

Xeon D-1518
2.2 GHz
Atom C2718
2 GHz

TDP

Specifications Full list of technical specs

summary

Xeon D-1518  vs
Atom C2718 
Clock speed 2.2 GHz 2 GHz
Cores Quad core Octa core

features

Has a NX bit Yes Yes
Has virtualization support Yes Yes
Instruction set extensions
AES
AVX
AVX 2.0
Supports dynamic frequency scaling Yes No

power consumption

TDP 35W 18W
Annual home energy cost 8.43 $/year 4.34 $/year
Annual commercial energy cost 30.66 $/year 15.77 $/year
Typical power consumption 28.44W 14.63W

bus

Architecture FSB FSB
Number of links 1 1

details

Xeon D-1518  vs
Atom C2718 
Architecture x86-64 x86-64
Threads 8 8
Manufacture process 14 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 2.2 GHz 2 GHz
Overclocked clock speed (Water) 2.2 GHz 2 GHz
Overclocked clock speed (Air) 2.2 GHz 2 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

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
Channels Dual Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 12,800 MB/s 12,800 MB/s
Maximum memory size 131,072 MB 32,768 MB
Intel Xeon D-1518
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Intel Atom C2718
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