I recently upgraded from a 2GB XFX Radeon 6950 to an 8GB XFX Radeon RX 580. Render times on the new video card are awful; GPU seems non-existent. I was getting better than real-time 1080p renders on the 6950. The new card took 6 minutes to render a 90 second clip!
VMS recognizes OpenCL in versions 13 & 14. I checked & unchecked many options but no change. Latest version of Radeon drivers have been loaded.
Any suggestions? Anyone else have a Radeon RX 580?