> Radeon R500 support was actually showed live at Pianeta Amiga 2013 and support for
> R700 (HD4xxx) was already in the works. And Frank Mariak and Mark Olsen told us
> that the plan is to have them both completed for the Sam460 release.

A MorphOS team member now says that support for anything newer than R500 "is unlikely because it would be waste on low end Sams."

http://amigaworld.net/modules/newbb/viewtopic.php?topic_id=39534&forum=45#744748