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Study Guide: CompTIA A+ Core Certification: Comparison of the Three Hard Drive Types
Source: https://www.fatskills.com/comptia-a-exam/chapter/comptia-a-core-certification-comparison-of-the-three-hard-drive-types

CompTIA A+ Core Certification: Comparison of the Three Hard Drive Types

By Fatskills Exam Guides Team — the exam nerds behind 28,500+ quizzes and 2.1M practice questions across 500+ global exams.

⏱️ ~1 min read
Type Cost Capacity Speed Reliability
HDD Least expensive and readily available Highest Slowest due to moving parts and magnetic storage Moving parts that can wear over time
SSD Most expensive, but price is dropping Lowest, but improving Fastest Solid state; no moving parts
SSHD Midrange Blends high HDD capacity with fast SSD cache for most-used files Blends fast solid-state cache with slower magnetic storage Moving parts that can wear out, but spins less than HDD

Table 3-10 Hard Disk Spin Rate Comparison

Spin Rate (RPM) Typical Use Desktop Drive Example Laptop Drive Example
5400 “Green” power-saving drives WD Blue Seagate 4TB Desktop HDD* WD Blue Seagate Laptop HDD
7200 Midrange performance WD Black Seagate Barracuda WD Black Seagate Laptop Thin
10000 High performance WD VelociRaptor —
15000 Servers and enterprise Servers —

 


* Actual spindle speed 5900RPM

 


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