I'm using Catalyst 13.2 beta 3 for my Radeon HD 6670 on Arch Linux 32bit (because with that driver, Team Fortress 2 is playable for me). Now Counter-Strike: Source is released for Linux and I tried it and it is unplayable for me. Every 3 seconds or so, the game stopps for about 1 second, making it impossible, to play that game. Please fix this. I thought, this is fixed with 13.2 beta 3 (because it fixed the unplayable state for TF2), but that isn't true.
Same here with my 7970.
Both TF2 and CSS have major frame drop issues with the latest beta driver and any driver before it.