And almost none of those apps are going to max out an Iris Pro, let alone a 980M.

They don't need to "max out" a card, because PS is not a game.

What counts is the time it takes to perform an operation like a Camera RAW import or a blur. If that goes down by a significant percentage, productivity goes up by a significant amount.

For drawing, good acceleration is the difference between a distracting experience that's laggy and unusable, and a smooth experience that gets out of the way of the work.

Besides, there are people with an interest in art and machine learning. Good luck with a 980M if that's your area of interest.

Not to the level people in this thread think they do.