Upgrading graphics card

I am planning on upgrading my graphics card for an existing installation. The upgrade will retain the card type, AMD Radeon, but will upgrade from a no longer supported HD series to a supported one. Will OS 13.2 automatically pick up the new graphics card in an existing system, or do I have to re-install the OS again ?

It should be plug and play
Always has been for me with nvidia
If you are just using the open Radeon driver now, your new card should do the same, but you will of course have the possibility of adding a proprietary one