I've been playing the Zelda games for n64 (ocarina of time and majoras mask) on the pc connected to my hdtv with an hdmi cable, rendering all graphics at 1080P and with a custom texture pack that replaces low res graphics (which already look better upscaled) with hi res textures, and the pack is over 20 times the size of the entire game, it's a whole new experience, and it looks beautiful. It no longer looks like a n64 game. The models look SLIGHTLY out of date now, but even they have been touched up and look better than they did. (new images for their eyes and clothes for example). But the backgrounds, the skies, the walls, everything else looks like it's out of a PS3 game. No joke. If your a n64 or a zelda fan and you've never played these games with enhanced textures, make sure you do sometime, as the results are truly breathtaking and give a whole new experience yet while still having the same feel. I actually think it looks far superior than the 3ds remake as it is much truer to the original game, except it's in HD.
Fyi, these screenshots don't do it justice. The difference between them isn't very noticeable at this resolution, but in the actual gameplay where it's shown at full 1080P, it's truly astounding.