Reggie on NX: "For us it's not about specs"

[Soundwave]

I think it'll be about 1 TFLOP using mobile-centric parts like Nvidia's next-gen Tegra.

They can't use laptop/home PC GPUs because it won't scale well to the portable, or at least not nearly as well as a natively mobile tech (tablet/phone) chip would.

1 TFLOP would allow them to have some PS4/XB1 ports, but it would still scale decently with a 5 watt portable (250 GFLOPS at 1/4th of the console) allowing them to share games between the two without too much trouble.

I don't think Nintendo generally gives a crap about broad third party support though, they know already they're not going to get it, that is MS/Sony territory now and they simply can't compete there.