Native 4K or Checkerboard "uprendered" 4k

[Lawlight]

Conina said:

Miguel_Zorro said:

I really don't see it - any specific spots where I should be looking?  Which one are people claiming is "better"?

The hair strains on the left, the jaggies on the right shoulder, the more detailed skin texture...

 

The more detailed textures of the skull and the stones, the jaggies on the arrow shafts, the feathers on the arrows...

Ah, you have to zoom in to see the difference?