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Differences What are the advantages of each

Front view of Intel Pentium III 1BGHz

Reasons to consider the
Intel Pentium III 1BGHz

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Supports more CPUs in SMP configuration 2 vs 1 Twice as many CPUs in SMP configuration
Front view of Intel Atom x5 x5-Z8300

Reasons to consider the
Intel Atom x5 x5-Z8300

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Much newer manufacturing process 14 nm vs 180 nm A newer manufacturing process allows for a more powerful, yet cooler running processor
Much more l2 cache 2 MB vs 0.25 MB 8x more l2 cache; more data can be stored in the l2 cache for quick access later
Higher clock speed 1.44 GHz vs 1 GHz Around 45% higher clock speed
Newer Apr, 2015 vs Mar, 2000 Release date over 15 years later
More cores 4 vs 1 3 more 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
More threads 4 vs 1 3 more threads

Features Key features of the Pentium III 1BGHz  vs Atom x5 x5-Z8300 

clock speed

L2 cache

Specifications Full list of technical specs

summary

Pentium III 1BGHz  vs
Atom x5 x5-Z8300 
Clock speed 1 GHz 1.44 GHz
Cores Single core Quad core

features

Instruction set extensions
MMX
SSE
AES

details

Pentium III 1BGHz  vs
Atom x5 x5-Z8300 
Threads 1 4
L2 cache 0.25 MB 2 MB
L2 cache per core 0.25 MB/core 0.5 MB/core
Manufacture process 180 nm 14 nm
Max CPUs 2 1

power consumption

Typical power consumption N/A N/A
Intel Pentium III 1BGHz
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Intel Atom x5 x5-Z8300
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