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Differences What are the advantages of each

Front view of Intel E3940

Reasons to consider the
Intel E3940

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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
More number of displays supported 3 vs 2 1 more number of displays supported
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Oct, 2016 vs Oct, 2013 Release date over 3 years later
Better performance per watt 6.52 pt/W vs 4.49 pt/W More than 45% better performance per watt
More threads 4 vs 2 Twice as many threads
Front view of Intel Atom E3827

Reasons to consider the
Intel Atom E3827

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Higher GPU clock speed 542 MHz vs 400 MHz More than 35% higher GPU clock speed
Higher Maximum operating temperature 110 °C vs 100 °C 10% higher Maximum operating temperature

Features Key features of the E3940  vs Atom E3827 

clock speed

E3940
1.6 GHz
Atom E3827
1.75 GHz

gpu clock speed

E3940
400 MHz
Atom E3827
542 MHz

TDP

E3940
9.5W

Specifications Full list of technical specs

summary

E3940  vs
Atom E3827 
Clock speed 1.6 GHz 1.75 GHz
Cores Quad core Dual core

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
AES
EM64T
Supports dynamic frequency scaling Yes No

memory controller

Memory controller Built-in Built-in
Memory type
DDR3
DDR3L-1333
Channels Quad Channel Dual Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 12,800 MB/s
Maximum memory size 8,192 MB 8,192 MB

details

E3940  vs
Atom E3827 
Architecture x86-64 x86-64
Threads 4 2
Manufacture process 14 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 100°C -40 - 110°C

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 500 HD
Number of displays supported 3 2
GPU clock speed 400 MHz 542 MHz

power consumption

TDP 9.5W 8W
Annual home energy cost 2.29 $/year 1.93 $/year
Annual commercial energy cost 8.32 $/year 7.01 $/year
Performance per watt 6.52 pt/W 4.49 pt/W
Typical power consumption 7.72W 6.5W

bus

Architecture FSB FSB
Number of links 1 1
Intel E3940
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Intel Atom E3827
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