Has anyone tried using the AMD FirePro PC cards in the 2006-2012 PCI Mac Pros? Since the: D700 is roughly equivalent to the FirePro W9000, D500 is roughly equivalent to the FirePro W8000, D300 is roughly equivalent to the FirePro W7000 One might think that slapping one of the FirePro W7/8/9k's in the PCI Mac Pro might work? And of great interest to me for running video walls, has anyone tried the W600 in a PCI Mac Pro? It will apparently drive 6 4k displays off one card. It's a single slot card, so you could potentially throw 4 of these in a PCI Mac Pro and have an astounding 24 4K screens (whereas the new Mac Pro is limited to just 3 4K screens). Thanks for any info.