With 11.2, Poser didn't recognize the 2000 RTX cards at all. 11.3 is where they addressed that issue, but it was stated that this was a basic driver level implementation, not a fully optimized one; that was going to take more time, so they weren't going to do any more 11. releases, and focus on getting Poser 12 done. The RTX cards support real time raytracing, which should boost the performance of any renderer that ray traces, but only if the time to implement the proper shaders and logic is used. 11.3 can use a Turing card, but it isn't optimized to take advantage of all the tricks. It works, but it doesn't really use the card as it could.