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Differences What are the advantages of each

Front view of Intel Atom E680T

Reasons to consider the
Intel Atom E680T

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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
Slightly lower typical power consumption 3.66W vs 8.13W 2.2x lower typical power consumption
Slightly lower annual commercial energy cost 3.94 $/year vs 8.76 $/year 2.2x lower annual commercial energy cost
Slightly lower annual home energy cost 1.08 $/year vs 2.41 $/year 2.2x lower annual home energy cost
Front view of Intel Atom E3845

Reasons to consider the
Intel Atom E3845

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Much more l2 cache 2 MB vs 0.5 MB 4x more l2 cache; more data can be stored in the l2 cache for quick access later
Much newer manufacturing process 22 nm vs 45 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
More advanced architecture x86-64 vs x86 A 64-bit architecture allows more RAM to be installed and accessed by the processor
Higher clock speed 1.91 GHz vs 1.6 GHz Around 20% higher clock speed
Higher GPU clock speed 542 MHz vs 400 MHz More than 35% higher GPU clock speed
More cores 4 vs 1 3 more cores; run more applications at once
Newer Oct, 2013 vs Sep, 2010 Release date over 3 years later
More threads 4 vs 2 Twice as many threads
Better overclocked clock speed (Air) 1.92 GHz vs 1.6 GHz Around 20% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 1.91 GHz vs 1.6 GHz Around 20% better overclocked clock speed (Water)

Features Key features of the Atom E680T  vs E3845 

clock speed

Atom E680T
1.6 GHz
Atom E3845
1.91 GHz

L2 cache

Atom E680T
0.5 MB
Atom E3845
2 MB

gpu clock speed

Atom E680T
400 MHz
Atom E3845
542 MHz

overclocked clock speed (air)

Atom E680T
1.6 GHz
Atom E3845
1.92 GHz

overclocked clock speed (water)

Atom E680T
1.6 GHz
Atom E3845
1.91 GHz

TDP

Specifications Full list of technical specs

summary

Atom E680T  vs
E3845 
Clock speed 1.6 GHz 1.91 GHz
Cores Single core Quad core

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
EM64T
SSE
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes No

power consumption

TDP 4.5W 10W
Annual home energy cost 1.08 $/year 2.41 $/year
Annual commercial energy cost 3.94 $/year 8.76 $/year
Typical power consumption 3.66W 8.13W

bus

Architecture FSB FSB
Number of links 1 1

details

Atom E680T  vs
E3845 
Architecture x86 x86-64
Threads 2 4
L2 cache 0.5 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 45 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.6 GHz 1.92 GHz
Overclocked clock speed (Water) 1.6 GHz 1.91 GHz
Overclocked clock speed (Air) 1.6 GHz 1.92 GHz

integrated graphics

GPU GPU GPU
Label Integrated HD
GPU clock speed 400 MHz 542 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR2-800
DDR3L-1333
DDR2
Channels Single Channel Dual Channel
Supports ECC No Yes
Maximum bandwidth 6,400 MB/s 12,800 MB/s
Maximum memory size 2,048 MB 8,192 MB
Intel Atom E680T
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Intel Atom E3845
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