I was just curious what distinguishes how fast a computer runs, the processor or the amount of ram thats in it. I'm just talking about the basic 2.13GHz to 2.26GHz and the ram 2GB to the 4GB kinda thing. I'm just wondering because i have a white macbook with 2GB of ram and a 2.13GHz processor and i want to do some graphic art (web comics, animations, photoshop, etc) and editing (photos, videos) on it. Does the 2.0GHz, to 2.13GHz to 2.26GHz (for example) matter to me? I'm going to upgrade the Ram from 2GB to 4GB how much of a difference does that make? Cuz i feel my computer is pretty fast, but that's just me being a first time mac owner. Thanks for any info.