When done with two separate drives, it most often involves configuring your system so that the SSD does the heavy lifting of booting and running your operating system, while the HDD is used for the less demanding task of file storage. The process of running two operating systems on your PC is known as dual-booting. If you’re willing to invest in both an HDD and an SSD, there’s a way to configure them so that you get the best of both worlds. Here’s a little secret though: you don’t actually have to choose. Solid state drives, meanwhile, are far more durable and load faster than HDD’s since they have no moving parts, but they’re also noticeably more expensive (for comparison, a 250GB SSD costs about as much as a 1TB HDD). Hard disk drives are cheaper and more common, but their reliance on internal moving parts means that they’re much more prone to breaking down, and they tend to be slower. When constructing your own gaming PC, having to choose between a solid state drive (SSD) or hard disk drive (HDD) can be difficult.