They promised the elusive Frame Pacing driver to fix the lack of Crossfire performance by the end of July. They even announced that it was on the way by the end of July as recently as June. i would be a little concerned that they have not released it yet as promised.
I was wondering because I wanted to crossfire some 7850s or 7870s in the future but I heard about the problems crossfire brings.
It's not a good idea, and basically a waste of money until they fix the issue.
Frame Rating: AMD plans driver release to address frame pacing for July 31st
Well, the date has been set. AMD publicly stated on its @AMDRadeon Twitter account that a new version the prototype driver we originally previewed with the release of the Radeon HD 7990 in April will be released to the public on July 31st. For a problem that many in the industry didn't think existed. (More.....) http://www.pcper.com/news/Graphics-Cards/Frame-Rating-A...