Hello - I'm about to pick a new portable PC, which I intend to use mostly connected to a nice IPS external screen. I'd like to know if the graphic card makes much of a difference in image quality ? Especially knowing that I'm not a gamer, and that I'm concerned mainly about the things that matter to photography, like color fidelity. In other words, can I choose on other criteria, or are there graphic cards I must be wary of ? Thanks for your help !