I have a topped off late 2010 15" right now. I figured I'd get Apple care and I will be using this guy for 3 years then upgrade. But man Apple does one hell of a job temping you XD quad core and double the GPU performance?! DAMNIT! I game and I do a lot of video encoding so I know I would benefit greatly from the update but I'm not trying my best to wait for another year XD When it comes to encoding how big is the performance increase (in real world situation) are we talking a minute here and a minute there or like half the time?