Which ones though? Tbh I do have a 4k gsync so that does help when fps goes below 60. I find anything from 50-60fps to be smooth and below 50 it starts to get too choppy. It also helps with the input lag to run gsync @ 58fps. The most current game I run ultra is far cry 5, it's a pleasure @ 4k.

It's a graphics card running a computer program.

Did you expect it to run everything forever at an extremely high resolution with 60fps?

Why are Nvidia releasing new cards then?

Ultra is ridiculous and unnecessary. I play 4K60 on an RX 480 with "smart" settings — max textures/meshes, min shader effects, no ambient occlusion, no dynamic reflections, etc.