I would love this to be true, but I'm pretty sure Nintendo wants a seamless experience with the NX console and handheld. Any PC gamer will tell you that optimisation is a huge issue here. So they are likely both AMD or both Nvidia. Nintendo has never REALLY worked with them before. I remember reading a long time ago that the 3DS was originally going to use a Nvidia chipset, but the power consumption was to high or something. That would have been amazing though.
It would be great if Nvidia does try to break into the console market through Nintendo and take the hit. Plus with Nvidia's ego, they probably wouldn't let Nintendo release anything under powered. That would love very bad for them. Nivdia would get laughed at. I doubt they would like that run past their pride.
