Until recently, if you wanted the most performance per dollar from your computer you would go with an Intel based system. Looking at the most popular workstations for photo and video work there seems to be a trend where whether your OS of choice is Mac and you tote the latest portable with a touch bar, or you have a Windows based system with a 4K touchscreen like the Dell 9550, they all run off the same architecture.
Intel, despite producing new processors every year, hasn’t really improved the performance very much over the generations; instead focusing on the overall stability of their system. The Core i7 6700K in my desktop station has only a 20% performance increase (at most) to the Core i7 2760QM in my 2011 Macbook Pro. Although this is about a 5% gain per year, AMD still struggled to keep up.