My current laptop is a 17 inch HP with Intel Core 2 Duo 2.2GHz processor and 4GB or RAM from 2009. Been considering replacing it with a newer, smaller laptop. Right now I'm considering the Asus K200MA (11 inch), and D550 (15inch). Primary use will be Word, Excel, Powerpoint (Grad School), web surfing, streaming video and a little WoW or SWTOR every now and then. How would the Celeron N2815 stack up against what I have now? Would something like an AMD A4 be better? Am I better off just sticking with my HP? Thanks!