Any degradation in Quality with N64 Games on Wii U?

I am thinking about transferring my N64 wii virtual console games(mario golf, mario tennis, smash mario) to the Wii U. I was really happy with the qaulity of the N64 games on the Wii. Does anyone know if there is any degradation in the graphics or responsiveness on the wii u for the N64 games?

They look the same. I haven't noticed any difference in performance or visuals.

Slightly better with the HDMI cable.

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And any Wii mode games run exactly the same as they would on an actual Wii.