I'm not disappointed in the AMD choice. I use FCPX for work and it flies on my MBP. Creative Cloud is fine, too, even without cuda. But I'm using it for work, not as a gaming rig, though World of Warcraft is pretty sweet on my 2016 15" and a 4k display, but that's just icing on the cake.
Actually most of the graphics problems I've had with Macs have been NVidia, namely MBPs from the timebomb era. Thankfully Apple had their repair programs going and I had a few fixed through that.
That said, recent desktop NVidia cards, like the GTX 980, have run like champs in my 5,1 Mac Pros.
Things have changed a lot from when I started building and using computers. There's so much good stuff out there and it's easy to get hung up on data sheets. Of course, I remember when you needed half a million dollars in equipment to do a crossfade on video tape and you hoped you'd get the frames you wanted, so maybe I'm easily impressed with modern technology.