I don't give a rodent's rear what AMD told you, they probably just heared "3D software" and thought immediately to recommend a pro series card.  Everything I have read here, DAZ forums and BlenderArtist forum suggest they are not good cards for Studio, Poser or Blender.  And when I said, "decent game card", I meant better than some $80 budget card but not some expensive UberNerd game card, I suspect many of those are optimized for DirectX.