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Hard Drives vs Solid State Drives: What’s the Difference?

Hard Drives vs Solid State Drives: What’s the Difference?


Knowing the difference between a Solid State Drive (SSD) and Hard Disk Drive (HDD) can help you decide which drive best fits your needs. In the past, lightweight laptops had Solid State Drives while nearly every other desktop and traditional laptop came with Hard Disk Drives. Now, consumers and manufacturers recognize the benefits of both, and allow for more flexible options based on user preference.


Storage Matters

The fundamental difference between SSDs and HDDs is the way in which data is saved and stored to the drive. In traditional HDDs, data is stored on a metal plate with a magnetic coating. The plates spin as a read/write head either saves the data or accesses it. SSDs don’t involve as many moving parts. Data is stored on interconnected flash memory chips. The configurations of these chips vary widely depending on the unit. They can be part of the computer’s motherboard or slide into a laptop slot.

Size Matters

In cost compared to size ratio, HDDs are the clear winners. HDDs with multiple terabytes of storage are relatively affordable and their price continues to drop. SSDs don’t hold as much data and their price skyrockets after the 2TB capacity mark. USB drives are somewhat like SSDs, but it’s more cost effective to get a larger USB drive than a comparably sized SSD.

Speed Matters

The speed of an HDD is determined by how fast the plates can spin to read/write data. As the disc fills up with data, the read/write process can be interrupted with fragmentation. This occurs when data is written across multiple sections. It slows down the HDD and requires an additional step of de-fragmentation. This is not a concern for SSDs, as data can be written across multiple sections without sacrificing speed.

HDDs and SSDs differ in several fundamental ways. Both drives, unfortunately, have a risk of failure. The moving parts of HDDs suffer wear and tear and can be damaged due to several risk factors. SSDs have the unique risk of failure because their cells can wear out over time.

At Secure Data Recovery Services, we’re familiar with recovering data from both SSDs and HDDs after failure. If you need help recovering your personal information, precious photos, or valuable work data, call us at 1-800-388-1266 or submit an online help form today.

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