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Differences What are the advantages of each

Front view of Intel x5-Z8350

Reasons to consider the
Intel x5-Z8350

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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
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
Better overclocked clock speed (Air) 1.71 GHz vs 1.5 GHz Around 15% better overclocked clock speed (Air)
Newer Jan, 2016 vs Jul, 2015 Release date 6 months later
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
Much better turbo clock speed 800 MHz vs 500 MHz 60% better turbo clock speed
More number of displays supported 3 vs 2 1 more number of displays supported
Higher GPU clock speed 300 MHz vs 200 MHz 50% higher GPU clock speed
Better PassMark (Single core) score 790 vs 311 More than 2.5x better PassMark (Single core) score

Benchmarks Real world tests of x5-Z8350 vs Pentium 4405Y

PassMark Data courtesy Passmark

x5-Z8350
1,149

PassMark (Single Core)

Specifications Full list of technical specs

summary

x5-Z8350  vs
Pentium 4405Y 
Clock speed 1.44 GHz 1.5 GHz
Cores Quad core Dual 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 No Yes

power consumption

Typical power consumption N/A 4.88W

memory controller

Memory controller Built-in Built-in
Memory type
DDR3L-1600
DDR3
Channels Single Channel Dual Channel
Maximum bandwidth 6,400 MB/s 25,600 MB/s
Maximum memory size 2,048 MB 16,384 MB

details

x5-Z8350  vs
Pentium 4405Y 
Architecture x86-64 x86-64
Threads 4 4
L2 cache 2 MB 0.5 MB
L2 cache per core 0.5 MB/core 0.25 MB/core
Manufacture process 14 nm 14 nm
Max CPUs 1 1

overclocking

Overclocked clock speed 1.71 GHz 1.5 GHz
Overclocked clock speed (Water) 1.44 GHz 1.5 GHz
Overclocked clock speed (Air) 1.71 GHz 1.5 GHz

integrated graphics

GPU GPU GPU
Label Intel® HD Graphics 400 Intel® HD Graphics 515
Number of displays supported 2 3
GPU clock speed 200 MHz 300 MHz
Turbo clock speed 500 MHz 800 MHz

bus

Architecture FSB FSB
Number of links 1 1
Intel x5-Z8350
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Intel Pentium 4405Y
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