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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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Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
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 1.6 GHz vs 1.33 GHz More than 20% higher clock speed
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Oct, 2016 vs Oct, 2014 Release date over 2 years later
More threads 4 vs 2 Twice as many threads
Front view of Intel Atom E3805

Reasons to consider the
Intel Atom E3805

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Lower typical power consumption 2.44W vs 7.72W 3.2x lower typical power consumption
Lower annual commercial energy cost 2.63 $/year vs 8.32 $/year 3.2x lower annual commercial energy cost
Lower annual home energy cost 0.72 $/year vs 2.29 $/year 3.2x lower annual home energy cost

Features Key features of the E3940  vs Atom E3805 

clock speed

1.6 GHz
Atom E3805
1.33 GHz



Specifications Full list of technical specs


E3940  vs
Atom E3805 
Clock speed 1.6 GHz 1.33 GHz
Cores Quad core Dual core


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

memory controller

Memory controller Built-in Built-in
Memory type
Channels Quad Channel Single Channel
Supports ECC Yes Yes
Maximum bandwidth 25,600 MB/s 6,400 MB/s
Maximum memory size 8,192 MB 8,192 MB


E3940  vs
Atom E3805 
Architecture x86-64 x86-64
Threads 4 2
Manufacture process 14 nm 22 nm
Max CPUs 1 1

integrated graphics

Label Intel® HD Graphics 500 N/A
Number of displays supported 3 N/A
GPU clock speed 400 MHz N/A

power consumption

TDP 9.5W 3W
Annual home energy cost 2.29 $/year 0.72 $/year
Annual commercial energy cost 8.32 $/year 2.63 $/year
Typical power consumption 7.72W 2.44W


Architecture FSB FSB
Number of links 1 1
Intel E3940
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Intel Atom E3805
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