Eidos Montreal's Thief sequel was always supposed to have Mantle support, but it launched with DirectX rendering only. Today, that wrong is being righted with the release of both a Mantle patch for the game and a matching Catalyst graphics driver from AMD.
The Catalyst 14.3 beta v1.0 update adds both Mantle and TrueAudio support for Thief, and AMD says it alleviates CrossFire stuttering in that game, as well. On top of that, AMD touts a handful of improvements and bug fixes for CrossFire configs in other titles:
- Call of Duty: Ghosts: QUAD CrossFire profile update – improves level load times
- Audio issues observed when using CrossFire configurations (and V-sync enabled) have been resolved
- BattleField 4: V-sync issues observed on CrossFire configurations (with Mantle enabled) have been resolved
Some CrossFire bugs remain unsquashed, though. As outlined in the "known issues" section, CrossFire users may see flickering in both Thief and Titanfall, and folks with quad CrossFire configs and Eyefinity display setups can experience "slowdowns and stability issues" in BF4. AMD promises to have some of those kinks ironed out in the next beta driver.
In the meantime, you'll find the Catalyst 14.3 beta v1.0 here. It looks like there's a single download for both 32-bit and 64-bit versions of Windows 7, 8, and 8.1.