AMD 2012 Catalyst Driver Year-In-Review
The old OpenArena 0.8.5 game saw a performance setback from Catalyst 11.12 to Catalyst 12.1 on Linux and wasn't able to recover.
OpenArena 0.8.8 also moved backwards between Catalyst 11.12 and 12.1.
The Prey performance was flat over the course of 2012.