Hi guys, I'm thinking of buying the new Retina Macbook 15-inch and I'm wondering whether I should get the model with the dedicated graphics (Radeon). I don't play 3d games on my laptop nor I do any 3d design work. I do use the laptop for video processing (compressing HD clips) and some photoshop (mostly batching/resizing big amounts of files). Will the dedicated GPU increase performance in any of those cases? And one more thing - would a version without dGPU run cooler and more silent (less often kick up the fans to high rpm?) Thanks a lot for your help.