If the money was right, they would. Apple is not a random third party. Heck, it could buy AMD with a year's spare change.
https://www.xda-developers.com/a-look-back-at-amds-history-a...
I found an article claiming Intel is licensing AMD GPU technology [1]. If that's the case, would it be surprising to see Apple do the same?
[0] https://en.wikipedia.org/wiki/PlayStation_4
[1] https://seekingalpha.com/article/4042977-new-details-intels-...
[0] https://fail0verflow.com/blog/2016/console-hacking-2016-post...
Yes, same for the Xbox One, they both use APU customised by AMD.
https://www.extremetech.com/computing/227059-amd-announces-n...
There is no way in the foreseeable future that Nvidia will license their GPU designs to anybody.
The only way you'll see Nvidia IP on an Apple box is if Nvidia-made chips are in there, but Nvidia will require buy in on the rest of their software stack. But Apple won't want to cede that much control of their platform to Nvidia.
Nvidia already had tremendous reach, they don't need Apple.
* NVidia Tegra - possible
* ARM Mali - possible, but would not allow for much differentiation
* Qualcomm - has never sold its GPU IP seperately
* NVidia's Tegra graphics cores, possibly (not clear whether they block-license let alone architecture-license to third parties)
* ARM's Mali, definitely licensable
* Broadcom's VideoCore, possibly
* Vivante, definitely licensable
* Qualcomm's Adreno, formerly Imageon, unlikely
Also note that at least two dozen Imagination employees left for Apple between 2015 and 2016 http://appleinsider.com/articles/16/10/13/apple-poaching-gpu...