1) AMD must be preventing Intel from in future building similar integrated GPUs using anything like AMDs patent portfolio in GFX.
2) Intel will be able to 100% push out any vendors from moving to Ryzen for presumably faster integrated graphics.
3) Nvidia doesn't have an x86 CPU and last time I looked - all PCs and Mac laptops were using x86.
As some have speculated maybe this is Apple telling their suppliers to jump and Intel and AMD said how high...
I'm going to be interested to see if we ever get a jump to Apple using ARM and internally designed GPUs, I have a feeling that Jonny Ive must be wetting himself over making a reasonably powerful laptop that thin.