Leaked details point to a June release for AMD's new Fiji XT GPU. Lots of gfx stuff here is NVIDIA related, but I'd like to know what we know about Apple's updating of their AMD drivers. What are my chances of being able to use a Fiji chip in my cMP soon after release? Driver packages are unified, but I don't know if Apple routinely update their AMD drivers even if they aren't using the new hardware (yet). I'm guessing I need at least one driver refresh after Fiji is launched to make it work properly. If the most likely scenario is that we will have to wait another few months I'd probably rather just install a second R9 280X card now and use that setup until the new cards are confirmed working.