Oh shit, im wrong it's 1TB HDD, and it's a laptop.
Just means you have slower loading times, no big deal.
Well, in some games that do a lot of texture streaming (mainly those running on UE3) or have a really big open world suffer performance-wise from slow hdd's.
For example I got some stutters in The Crew 2 when entering different locations. Moved to my SSD and not a single issue since then.
Also being it a single drive PC, where OS is running off the same harddrive as the game, the stutter is almost granted (in newer + open-world games) and loading times can get atrocious (from my POV, though).
I'd recommend assembling a really fast external USB3 HDD for games. NEVER buy the slow-ass pre-built ones you buy at a store. If you want to keep the portable aspect (no need for external power supply)- buy a 2.5" USB3 box + a 7200 RPM HDD (i'd recommend Seagate BarraCuda Pro 1TB).