Hi.
Can you share a scene where the problem appears?
Since your hardware is not very common, it would be good if you share a scene to see if we can reproduce the problem on gaming cards.
Anyway, if the problem still persists on 2.83.9 LTS or Blender 2.91.0 Beta:
You should report the problem. But developers will ask you to share a .blend file where the problem occurs.