according to one of the "streamers" who's in that 8k demo they did when it was using dlss it was running 60fps ray tracing on at 8k, when dlss was turned off, boom 15fps. personally unless you have a HUGE tv and im talking 80" and 8k obviously it wont matter for now, also the value goes out the window because you're dropping thousands on a tv that will be half the price in 12 months.
I might try to use it anyway. Playing on a 4k TV, some games dont exactly have the best anti aliasing even at 4k and using DLSS to output 8k might improve that. I'll try both but I may just use 8k 60fps DLSS output instead if 4k 120fps DLSS output. Of course if there is not a significant enough visual clarity improvement, I'll go back to high framerate 4k.
I can't see myself buying an 8k TV until at least the RTX4000 card arrive, that should be 2 or 3 TV generations from now and screen prices will be 1/3rd of what they are now.

