SSD better than HDD

 This is the myth.


One of the biggest myths in computing is that an SSD (solid state drive) is always better than a standard HDD (hard disk drive). This idea dates back to when we started building computers. We could fit more data into a smaller amount of space with an SSD, so it seemed like these drives were superior when comparing them against their traditional HDD counterparts. However, this myth has been around for so long and lived on despite numerous setbacks in the industry, that today many people still believe it's valid.


The thing is that while an SSD can hold more data in less space, it also has a number of drawbacks that make it less desirable than its HDD counterpart. Yes, an SSD performs faster than an HDD, but only when you send it small amounts of data. The moment your computer starts loading large pieces of data like video games or movies, the speed at which the data is read from the drive slows down substantially. The difference between both drives becomes even smaller when you consider that most computers today come with multiple drives such as dual hard disk setups and hybrid drives.


Though larger drives, hybrid drives combine the HDD and SSD inside a single, large capacity drive. When you load large files on such a drive like a movie or game, the speed of the drive is limited by how fast its read/write head can move across the platter of the disk. This is where traditional hard disk drives win out over SSDs. The moment you send a request to your computer, it grabs that information and sends it to either your SSD or HDD depending on which one is closer to where that information is located. This means that when loading large pieces of data from an HDD, you'll be able to get faster speeds than if that same data was read from your SSD.


Your computer also does some of this work for you and moves all data into a section of the hard drive, called cache, before it sends it to your SSD. This way, your computer doesn't have to wait until that data is located on your SSD before sending it over, so working with an SSD is almost all about the speed of your bus. The bus is the fastest and easiest way to transfer data between different components in a computer, so working with an SSD will be all about how fast your bus can send that data to and from the drive.

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