I Steam VR benchmarked my current RX480 powered system (listed below). Mostly, frame rates were above 100fps and never below 90fps.

My RX480 system just meets the full standard (does not exceed it) as shown by the screenshot below. That is what AMD advertised -- they said the RX480 would fully meet the VR specifications but not exceed. Parenthetically, the FX9590 CPU also fully met the specification.

During the run, two images are up on the screen -- side by side. I let my "eyes" "spread" (opposite of cross) to watch the scene in full 3D stereo without needing special glasses or a VR setup. I suppose others could do the same.