[Karuma]

People like to increase the internal resolution to render at 4K or more, which I believe is much faster when using hardware to do it.

[modeless]

Wow, yeah, that would be a reason to use hardware. Here's what that looks like: https://youtu.be/tvGVqGQIDGA

Kind of an interesting aesthetic. It looks less terrible than I expected. I think it would be interesting to apply some of the recent machine learning based upsampling techniques on DS games too.

[pcwalton]

4K at 60 FPS is basically impossible on CPU.