Hey, i recently got a new GPU the RX480 4GB. i have really good performance in nearly every application but not X-plane .. I get really bad fps... compared to my old GTX 660.
I have uninstalled all NVIDIA drivers and installed the newest AMD, with no luck.
I get around 33fps in the 2D cockpit of default aircraft. at Seattle..
with pretty low settings.
I7 3930K 4.0GHZ