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Differences What are the advantages of each

Front view of Intel Atom Z3770

Reasons to consider the
Intel Atom Z3770

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Significantly higher turbo clock speed 2.4 GHz vs 1.83 GHz More than 30% higher turbo clock speed
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 higher clock speed 1.46 GHz vs 1.33 GHz Around 10% higher clock speed
Better geekbench 2 (32-bit) score 2,827 vs 2,277 Around 25% better geekbench 2 (32-bit) score
Better PassMark (Single core) score 472 vs 338 Around 40% better PassMark (Single core) score
Better 3DMark06 CPU score 2,212 vs 1,827 More than 20% better 3DMark06 CPU score
Better performance per dollar 5.23 pt/$ vs 4.71 pt/$ More than 10% better performance per dollar
Supports more RAM 4,096 MB vs 2,048 MB Supports 2x more RAM
Slightly better overclocked clock speed (Water) 1.47 GHz vs 1.33 GHz More than 10% better overclocked clock speed (Water)
Front view of Intel Atom Z3740D

Reasons to consider the
Intel Atom Z3740D

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Better overclocked clock speed (Air) 1.82 GHz vs 1.47 GHz Around 25% better overclocked clock speed (Air)

Benchmarks Real world tests of Atom Z3770 vs Z3740D

GeekBench 3 (Multi-core) Data courtesy Primate Labs

Atom Z3770
2,995
Atom Z3740D
2,448

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Atom Z3770
393,800 MB/s
Atom Z3740D
303,000 MB/s

GeekBench (32-bit) Data courtesy Primate Labs

Atom Z3770
2,827
Atom Z3740D
2,277

GeekBench

Atom Z3770
2,827
Atom Z3740D
2,277

3D Mark 06 (CPU)

Atom Z3770
2,212
Atom Z3740D
1,827

PassMark Data courtesy Passmark

Atom Z3770
1,285
Atom Z3740D
1,044

PassMark (Single Core)

Specifications Full list of technical specs

summary

Atom Z3770  vs
Z3740D 
Clock speed 1.46 GHz 1.33 GHz
Turbo clock speed 2.4 GHz 1.83 GHz
Cores Quad core Quad core

features

Has virtualization support Yes Yes
Instruction set extensions
AES
Supports dynamic frequency scaling Yes No

power consumption

Typical power consumption 3.25W N/A

bus

Architecture FSB FSB
Number of links 1 1

details

Atom Z3770  vs
Z3740D 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 2 MB 2 MB
L2 cache per core 0.5 MB/core 0.5 MB/core
Manufacture process 22 nm 22 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.47 GHz 1.82 GHz
Overclocked clock speed (Water) 1.47 GHz 1.33 GHz
Overclocked clock speed (Air) 1.47 GHz 1.82 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics Intel® HD Graphics
GPU clock speed 311 MHz 313 MHz

memory controller

Memory controller Built-in Built-in
Memory type
DDR3-1066
DDR3
Channels Dual Channel Single Channel
Supports ECC No No
Maximum bandwidth 17,066.66 MB/s 6,400 MB/s
Maximum memory size 4,096 MB 2,048 MB
Intel Atom Z3770
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Intel Atom Z3740D
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