Currently using MacPro 3,1 (Quad Core 2.8, 16gb RAM, 10.8) for Adobe CC suite (photo/publishing/design/effects), FCPX(HD footages), and many other small apps. Lagging in many areas, but it's been a great work-horse desktop for many years. Would love to get a new MBP for next setup. I'm hoping that MBP can speed up some daily processing tasks when working with multi-layered PSD files, or FCP rendering, or in general working with Adobe CC. Question: Will either top-end 13" or low-end 15" MBP (both with max RAM) be a good replacement for current MacPro? Or, should I just go with top-end 15" MBP for Iris-Pro card?