Switch can play every 4K Scorpio/PS4 Pro game above 720p. Basic maths.

[Pyro as Bill]

4K = 720p x8+ (8.3M pixels V 0.92M pixels)

6TF = 0.75TF x8

 

4K PS4 Pro games could be played at 900p. (x5.8 pixels v 5.6 power)

1080p PS4 games could run at 720p. (x2.2 pixels v x2.4 power)

Even a 4K game on a 7TF PS5 could be run by Switch at 720p (x9) or a 12TF PS5 could be played at 720p upscaled from 540p. (x16 pixels v x16 power)

 

This assumes that the Scorpio will actually be able to play native 4K games which might not be possible looking at this thread http://gamrconnect.vgchartz.com/thread.php?id=222629&page=1