Aaaand first vid I've seen with some one trying it out.Wow that was quick. Nice.
Interesting development. Some people managed to get FSR4 working on RDNA3 by converting the FP8 calls to FP16. As you might imagine, this runs horribly. As it was never meant to run that way, but still kinda cool.
Imho for FSR4 is run well at all on non-RDNA4 hardware it's goign to need to be adapted properly. Much like XeSS has been.