What is the difference between SSDs and HDDs?

Asked By Evin Gizmo 20 points N/A Posted on - 03/21/2012

Recently SSDs are more popular than HDDs but what is the difference between those two.Why SSDs are gaining more 

popularity than HDDs and what are it's features?

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Answered By Cassi Flok 0 points N/A #117390

What is the difference between SSDs and HDDs?

SSDs are using flash memory, which means there are no moving mechanical parts in them. There is no read/write head, actuator arm etc. That means this type of discs are much faster in reading data. They are also faster in writing data but not so much as in reading. Speed is probably the most important advantage of SSD.(Solid State Discs)

But, of course, they are much more expensive than HDDs.
So, it’s good to use them for operating system (where the speed of reading data is the most important). For other discs it’s probably still quite ok to use some classic HDD.

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Answered By Sharath Reddy 590495 points N/A #117391

What is the difference between SSDs and HDDs?

Both SSDs and HDDs have the same functions. They boot your system, store your important files, and store your applications. The main disadvantage of an SSD drive over an HDD drive, I guess, would be its market price. For an ordinary HDD, a 250 GB capacity will only cost you at around $50 maybe. But for an SSD, a 250 GB capacity would probably mean around $150.

Another example is a 1 TB 2.5-inch internal drive, for an HDD you’ll pay around $75. But for an SSD with the same capacity and form factor, it is a whopping $600. Maybe this is also the reason why SSDs are less visible on computer stores than HDDs. In terms of speed, this is where HDDs are left out. A computer with SSD boots in seconds and definitely under a minute.

A hard drive needs time to speed up to operating specification and will continue to get slower than SSD under normal operation. A computer equipped with an SSD boots a lot faster, opens applications faster, and has superior overall performance. While data fragmentation is a fact about HDD, SSDs don’t care where data are being stored on its chips.

SSDs don’t contain mechanical parts like HDDs that’s why data fragmentation is not a problem. SSDs are naturally faster.

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• Posted on - 06/27/2014
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