I'm about to order a new MBP but there's some questions: 1. Will I notice any difference in performance between an Apple SSD and an Intel 320 SSD? All I do except the usual is some gaming and a little Photoshop. 2. Are TimeMachine backups compressed? I've got a HDD with backups on it and thought that I might figure out how much space I used on my last Mac by checking the last backup?