Just in case that you own a Intel CPU with integrated graphics you may wanna try this. Feedback greatly appreciated.
While beeing pissed of that rendering h264 h265 stuff on premiere makes no use of my 1080ti (only for certain plugs) i figured that it is done by CPU entirely.
After some research came across a solution that at least decreases rendering time enormously!
Intel integrated GPUs usually get turned off on your bios as soon as you install a GPU. And everybody leaves it like that because why bother bout a crappy integrated GPU, right? I set the Bios to use both GPUs and boom... Rendering on premiere was noticeably much faster on most common codecs.
While decoding h264/h265 is very smooth and fast, encoding is a bitch.
At the same time I can set way higher application SS and Steam SS than before!! (vive)
I somehow have the feeling that INTELs Quicksync helps with the workload of Supersampling.
I may try to provide a comparison if I find the time. Until then feel free to try it yourselves, since it is only a couple of clicks.