DerNebel on 05 May 2014
Another article from the same day that says it's 720p.
Google translated : Flashes of light and colorful distinctive of Nintendo games do the rest in a product to be native 720p, but it really is hard to believe you are not actually 1080p. The result is outstanding
http://www.3djuegos.com/juegos/avances/15527/4134/0/mario-kart-8/
