The screen is 720p, but in TV mode I'd assume games can be output at higher resolutions. Would be weird for the system to have lower resolution than what the Wii U already does.
I'm surprised by how good the models look in game. The 3DSs resolution really ruins the visuals.
That looks kinda good, actually. And keeping in mind that they can, in addition, polish the graphics to HD quality with the Switch... phew, kinda hyped now!