just reporting for AMD Crossfire users that AMD just released a crossfire fix and performance boost.
Lucky crossfire users, hopefully they improve SINGLE GPU Performance and that **** campaign map bug gets fixed XD
Rome Total War 2: Updated AMD CrossFire™ profile
improves CrossFire scaling up to 20% (at 2560x1600 with extreme settings)
resolves corruption issues seen while playing the game
When installing new AMD drivers always make sure you completely uninstall the old ones and run a driver cleaner before installing the new drivers.
A guide to uninstalling display drivers can be found here. http://forums.guru3d.com/showthread.php?t=379505