Which macbook pro graphics card? iris or iris with radeon for lightroom and photoshop and maybe at some point video but who knows? Do i need to drop 800 more on the one with the radeon? I do not play games. Does anyone have specs on benchmarks on the two or have any more info about them? I just got the retina 2016 macbook but may upgrade it to a pro. I was originally looking at the 13 inch macbook pro but the retina is almost as f ast and my i7 2011 macbook pro is way faster as well so i feel like I'm stuck with the 15. Opinions?