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Differences What are the advantages of each

Front view of Intel Atom Z3740

Reasons to consider the
Intel Atom Z3740

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Significantly more l2 cache 2 MB vs 1 MB 2x more l2 cache; more data can be stored in the l2 cache for quick access later
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
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 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Has a NX bit Yes vs No Somewhat common; Prevents a common class of security exploits
More cores 4 vs 2 Twice as many cores; run more applications at once
Lower typical power consumption 1.63W vs 11.46W 7.1x lower typical power consumption
Newer Oct, 2013 vs Dec, 2012 Release date 9 months later
Lower annual home energy cost 0.48 $/year vs 3.4 $/year 7x lower annual home energy cost
Lower annual commercial energy cost 1.75 $/year vs 12.35 $/year 7x lower annual commercial energy cost
Front view of Intel Atom S1289

Reasons to consider the
Intel Atom S1289

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Higher clock speed 2 GHz vs 1.33 GHz More than 50% higher clock speed
Better overclocked clock speed (Air) 2 GHz vs 1.55 GHz Around 30% better overclocked clock speed (Air)
Better overclocked clock speed (Water) 2 GHz vs 1.33 GHz More than 50% better overclocked clock speed (Water)

Features Key features of the Atom Z3740  vs S1289 

clock speed

Atom Z3740
1.33 GHz
Atom S1289
2 GHz

L2 cache

overclocked clock speed (air)

Atom Z3740
1.55 GHz
Atom S1289
2 GHz

overclocked clock speed (water)

Atom Z3740
1.33 GHz
Atom S1289
2 GHz

TDP

Specifications Full list of technical specs

summary

Atom Z3740  vs
S1289 
Clock speed 1.33 GHz 2 GHz
Cores Quad core Dual core

features

Has a NX bit Yes No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
EM64T
SSE
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes No

power consumption

TDP 2W 14.1W
Annual home energy cost 0.48 $/year 3.4 $/year
Annual commercial energy cost 1.75 $/year 12.35 $/year
Typical power consumption 1.63W 11.46W

bus

Architecture FSB FSB
Number of links 1 1

details

Atom Z3740  vs
S1289 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 2 MB 1 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 22 nm 32 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.55 GHz 2 GHz
Overclocked clock speed (Water) 1.33 GHz 2 GHz
Overclocked clock speed (Air) 1.55 GHz 2 GHz

integrated graphics

GPU GPU None
Label HD (Ivy Bridge) N/A
GPU clock speed 311 MHz N/A
Turbo clock speed 667 MHz N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3L-1066
DDR3
Channels Dual Channel Single Channel
Supports ECC No Yes
Maximum bandwidth 17,066.66 MB/s 10,666.66 MB/s
Maximum memory size 4,096 MB 8,192 MB
Intel Atom Z3740
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Intel Atom S1289
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