I know that I read somewhere about the fact of Cycles going forward at some point the older cards are going to stop being supported, due to older versions of drivers not being able to keep up. I have a newer AMD Ryzen 5 3600 which is a lot faster then my last computer, However between the CPU and the 1070 card the GPU card will render between 2 to 3 times faster. I just need to wait for the newer cards to come into stock and from tests results I have seen it should be 2-3 times faster then my 1070.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13