I've seen people say that the clock speeds of the GPU are different between the 15" and the 17" MBP, namely that the 17" is clocked higher. My question: is the actual speed difference between the two noticeable when using GPU intensive tasks, like games and video-editing? If one planned to game a bit on the MBP, would it be worth it to get a 17" over a 15" simply because of the clock speed of the GPU? Thanks for any info! edit: From this link: http://www.apple.com/macbookpro/graphics.html on the right hand side, the 17 and 15 inch comparison bar cought my atention. I hadn't realized that there was such a difference in performance betwwen two identically specced MBPs. Again, my question: is it noticeable from a user standpoint? Thanks again.