I noticed today that ShadowPlay may not be functionally equal for all Nvidia cards.
On a GTX 1080, you have the option to record at 4K 60 FPS. On a GTX 780 Ti, however, the maximum you can go up to is 1440P 30 FPS or 1080P 60 FPS.
Is this public knowledge? I assume it's got something to do with the x264 encoder inside these graphics cards and Pascal obviously has a better one.