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Differences What are the advantages of each

Front view of Intel Core Solo U1400

Reasons to consider the
Intel Core Solo U1400

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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
Much more l2 cache per core 2 MB/core vs 0.5 MB/core 4x more l2 cache per core
Front view of Intel Atom x7 x7-Z8700

Reasons to consider the
Intel Atom x7 x7-Z8700

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Much better geekbench 3 AES single core score 389,000 MB/s vs 47.9 MB/s More than 8121x better geekbench 3 AES single core score
Much newer manufacturing process 14 nm vs 65 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
Has a built-in GPU Yes vs No Somewhat common; A separate graphics adapter is not required
Higher clock speed 1.6 GHz vs 1.2 GHz Around 35% higher clock speed
Newer Jan, 2015 vs Apr, 2006 Release date over 8 years later
More cores 4 vs 1 3 more cores; run more applications at once
Significantly better overclocked clock speed (Air) 2.4 GHz vs 1.57 GHz Around 55% better overclocked clock speed (Air)
More threads 4 vs 1 3 more threads
Better PassMark score 1,924 vs 282 More than 6.8x better PassMark score
Better overclocked clock speed (Water) 1.6 GHz vs 1.2 GHz Around 35% better overclocked clock speed (Water)

Benchmarks Real world tests of Core Solo U1400 vs Atom x7 x7-Z8700

GeekBench 3 (Multi-core) Data courtesy Primate Labs

GeekBench 3 (Single core) Data courtesy Primate Labs

GeekBench 3 (AES single core) Data courtesy Primate Labs

Core Solo U1400
47.9 MB/s
Atom x7 x7-Z8700
389,000 MB/s

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Core Solo U1400  vs
Atom x7 x7-Z8700 
Clock speed 1.2 GHz 1.6 GHz
Cores Single core Quad core

features

Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE3
SSE
AES
Supports dynamic frequency scaling Yes No

power consumption

Typical power consumption 4.88W N/A

memory controller

Memory controller Built-in Built-in

details

Core Solo U1400  vs
Atom x7 x7-Z8700 
Architecture x86 x86-64
Threads 1 4
L2 cache 2 MB 2 MB
L2 cache per core 2 MB/core 0.5 MB/core
Manufacture process 65 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.57 GHz 2.4 GHz
Overclocked clock speed (Water) 1.2 GHz 1.6 GHz
Overclocked clock speed (Air) 1.57 GHz 2.4 GHz

integrated graphics

GPU None GPU
Label N/A Intel® HD Graphics
Number of displays supported N/A 3
GPU clock speed N/A 200 MHz

bus

Architecture FSB FSB
Number of links 1 1
Intel Core Solo U1400
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Intel Atom x7 x7-Z8700
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