The video isn't entirely about the quality of the port itself, as Thomas starts off initially with talking about the difference in visual philosophies between 2D and 3D Mario, what benefits 3D rendering gave 2D Mario on a visual level, but for anyone looking for hard numbers...
-docked mode renders at 1080p native vs. 720p on Wii U
-no AA
-a substantial increase in texture filtering that Thomas pins at close to 16xAF
-Peach got a brand new model compared to Wii U, though all other older character models remained the same
-increased shadow resolution
-handheld mode is 720p native with no visual cutbacks
-both docked and handheld run at a locked 60 fps, though Thomas mentions that if he has any findings to the contrary in four-player mode that he'll put out an update
-game size is mentioned between both versions, with the Wii U game with NSLU weighing in at 13GB, while the Switch version is a little more than 2GB; Thomas chalks this up to both more advanced compression techniques and suggests that NSLU simply doubled up on the same assets on Wii U, thereby increasing its file size a bit wastefully
-mentions DKC:TF as a point of comparison in terms of how NSMBUDX looks and runs, since that game ran at sub-native in handheld mode
There's more to the video than that, including a wishlist of sorts for more Wii U ports and what Thomas felt was a missed opportunity in this version in terms of visual options inspired by Super Mario Maker, but that's the long and short of it otherwise.
EDIT: The mystery of the file size discrepancy has been solved:
UPDATE [9/10/19]: the 13GB Wii U file size mystery is solved. The understanding is that extra videos are stored on the U + Luigi game disc, and digitally too. Meanwhile Switch avoids taking up so much space by simply offering an option to stream them - making 2.5GB possible for a cartridge.
Last edited: