In general, if one graphics profile doesn't work, then try another. By "not work", typical symptoms of missing graphics drivers are software fallback rendering (very slow), the GNOME "Oops something went wrong" sad computer face, and other failure modes where desktop environments will not start.
If you are concerned, you should be able to enable several generations of AMD/Radeon profiles at the same time. For instance, I have a BARTS card in this machine I am typing on, but at some point I hope to swap that with a Bonaire (couple generations later). Enabling both gfxcard-radeon (for the older card) and gfxcard-amdgpu (for the newer card) could be a transitional step.