How do ssds work in respect to Sequential Read/Write speed, and Random Read/Write speed, How would that affect performance such as video games and doing tasks on the computer?

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How do ssds work in respect to Sequential Read/Write speed, and Random Read/Write speed, How would that affect performance such as video games and doing tasks on the computer?

In: Technology

SSDs basically can access any of their parts at any time at roughly the same speed because all they have to do is send an electric signal to that part. HDDs, in contrary, have multiple disks with data and a part that needs to be physically positioned above a certain part of the spinning disk to read/write the contents of this part which is much, much slower.

So, while HDDs can be decent at sequential speed (when we have positioned the “pin” at the right place and just reading one big file or consecutive files without miving it any further), SSDs are much better especially at random read (when the files we need are scattered around the disk). That’s why HDDs needed defragmentation, when we tried to reorder file parts on the disk so that all parts of the same file are stored together.

In regards to performance, whenever you need to work with something that is not currently stored in the RAM, SSDs would be faster.