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Differences What are the advantages of each

Front view of Intel Pentium 4405Y

Reasons to consider the
Intel Pentium 4405Y

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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
Higher GPU clock speed 300 MHz vs 200 MHz 50% higher GPU clock speed
Better PassMark (Single core) score 790 vs 553 Around 45% better PassMark (Single core) score
Newer Jul, 2015 vs Jan, 2015 Release date 6 months later
Front view of Intel Atom x7 x7-Z8700

Reasons to consider the
Intel Atom x7 x7-Z8700

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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 better performance per dollar 4.22 pt/$ vs 0.53 pt/$ Around 8x better performance per dollar
Significantly better overclocked clock speed (Air) 2.4 GHz vs 1.5 GHz Around 60% better overclocked clock speed (Air)
More cores 4 vs 2 Twice as many cores; run more applications at once
More l2 cache per core 0.5 MB/core vs 0.25 MB/core 2x more l2 cache per core

Benchmarks Real world tests of Pentium 4405Y vs Atom x7 x7-Z8700

PassMark Data courtesy Passmark

PassMark (Single Core)

Specifications Full list of technical specs

summary

Pentium 4405Y  vs
Atom x7 x7-Z8700 
Clock speed 1.5 GHz 1.6 GHz
Cores Dual core Quad core

features

Has virtualization support Yes Yes
Instruction set extensions
SSE2
MMX
SSE4
SSE3
SSE
SSE4.1
SSE4.2
Supplemental SSE3
AES
Supports dynamic frequency scaling Yes No

power consumption

Typical power consumption 4.88W N/A

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Channels Dual Channel Dual Channel
Maximum bandwidth 25,600 MB/s 12,800 MB/s
Maximum memory size 16,384 MB 8,192 MB

details

Pentium 4405Y  vs
Atom x7 x7-Z8700 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 0.5 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 14 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.5 GHz 2.4 GHz
Overclocked clock speed (Water) 1.5 GHz 1.6 GHz
Overclocked clock speed (Air) 1.5 GHz 2.4 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 515 Intel® HD Graphics
Number of displays supported 3 3
GPU clock speed 300 MHz 200 MHz

bus

Architecture FSB FSB
Number of links 1 1
Intel Pentium 4405Y
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Intel Atom x7 x7-Z8700
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