Loading times isn't just loading a new region. The game loads textures, animations, particle effects and other resources on the fly.
Have you tried arriving at a world boss fight and found that your game almost freeze and you see noone till a minute after you arrived? That is because the game client suddenly needs to load an awful lot of player armor textures, animations and particle effects. You pretty much get rid of that with an SSD. Same with the micro stuttering while moving around, as the landscape textures loads as you move. An SSD eliminates most of that as well.
Your client can't really render the graphics before textures are loaded, so while an SSD dosen't directly affect your fps, you do have fps drops as your client is waiting for the textures to load. An SSD will minimize this.
A really fast harddisk will achive some of this as well, but you'll love having a fast SSD in your system. If anything I find that 120Gb is a bit tiny. I can recommend the 256Gb Samsung 840 PRO SSD. But it might be overkill and less will do with a limited budget.
Last edited by Sifie; 1st June 2014 at 10:03.