I needed a portable solution that could also serve as my video editing station so I had to decide if a quad core with a dGPU is that important in my workflow. I did a small test with proxy generation in FCPX across MBP 15", MBP 13" & MB 12". It was with 3 XAVC-S 4K files with a total of 10min duration, located on an external USB3 hard drive: MBP 15" 2.7 455 2016 ~ 3.5 min MBP 13" 3.3 2016 ~ 4.5 min MB 12" m7 2016 ~ 15.5 min I knew the 12" throttled but after the test I realized how much it can affect performance. I was very impressed with the performance of the 13", it was much closer to the 15” than expected for a supposedly CPU heavy task. The 13” would be a problem for Resolve though because it lacks a dGPU, but the eGPU solution looked promising so I got an AKiTiO Node to try with my GTX titan & the MacBook 13 3.3 2016 . It was a breeze to set up with instructions from this very useful forum: