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Differences What are the advantages of each

Front view of Intel Core i3 2340UE

Reasons to consider the
Intel Core i3 2340UE

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Significantly better turbo clock speed 800 MHz vs 667 MHz Around 20% better turbo clock speed
Better PassMark (Single core) score 689 vs 369 More than 85% better PassMark (Single core) score
Higher Maximum operating temperature 100 °C vs 90 °C More than 10% higher Maximum operating temperature
Slightly higher GPU clock speed 350 MHz vs 311 MHz Around 15% higher GPU clock speed
Front view of Intel Atom Z3740

Reasons to consider the
Intel Atom Z3740

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Much better performance per watt 73.77 pt/W vs 4.34 pt/W Around 17x better performance per watt
Much better performance per dollar 4.61 pt/$ vs 0.32 pt/$ More than 14.2x better performance per dollar
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
Significantly newer manufacturing process 22 nm vs 32 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Lower typical power consumption 1.63W vs 13.81W 8.5x lower typical power consumption
More cores 4 vs 2 Twice as many cores; run more applications at once
Newer Oct, 2013 vs Jun, 2011 Release date over 2 years later
Better overclocked clock speed (Air) 1.55 GHz vs 1.3 GHz Around 20% better overclocked clock speed (Air)
Lower annual home energy cost 0.48 $/year vs 4.1 $/year 8.5x lower annual home energy cost
Lower annual commercial energy cost 1.75 $/year vs 14.89 $/year 8.5x lower annual commercial energy cost

Benchmarks Real world tests of Core i3 2340UE vs Atom Z3740

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core i3 2340UE  vs
Atom Z3740 
Clock speed 1.3 GHz 1.33 GHz
Cores Dual core Quad core
Socket type
BGA 1023
BGA 1380
Is unlocked No No

features

Has a NX bit Yes Yes
Supports trusted computing No No
Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
AVX
SSE3
EM64T
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes Yes

power consumption

TDP 17W 2W
Annual home energy cost 4.1 $/year 0.48 $/year
Annual commercial energy cost 14.89 $/year 1.75 $/year
Performance per watt 4.34 pt/W 73.77 pt/W
Typical power consumption 13.81W 1.63W

bus

Architecture DMI FSB
Number of links 1 1

details

Core i3 2340UE  vs
Atom Z3740 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 1 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 32 nm 22 nm
Max CPUs 1 1
Operating temperature Unknown - 100°C Unknown - 90°C

overclocking

Overclocked clock speed 1.3 GHz 1.55 GHz
Overclocked clock speed (Water) 1.3 GHz 1.33 GHz
Overclocked clock speed (Air) 1.3 GHz 1.55 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 3000 HD (Ivy Bridge)
GPU clock speed 350 MHz 311 MHz
Turbo clock speed 800 MHz 667 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1333
DDR3-1066
DDR3
DDR3L-1066
Channels Dual Channel Dual Channel
Supports ECC Yes No
Maximum bandwidth 21,333.32 MB/s 17,066.66 MB/s
Maximum memory size 16,998.4 MB 4,096 MB
Intel Core i3 2340UE
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Intel Atom Z3740
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