I got RTX working around Feb 2020 and these are the screenshots I took. With an AMD x4 965 phenom 2 and nV 680 i got 60-90 fps using
defrag's idfe engine with full graphics and additional graphics of idfe engine. You can read more about that in the
Defrag Page. This took roughly 3 days to figure out the a few hours of tweaking to make things look properly. This is 12 filters and this is the same month RTX was released with very little information. And yes, you don't need an RTX card for RTX, enjoy that advertising hype.