You do not buy them at the apple store. You buy them from newegg, amazon, best buy, or wherever you want and install them as a SECONDARY card (leaving the 5770 as the output for the monitor(s)). The 600 series card is used only for acceleration. This is the way resolve is designed to work best, along with some sort of decklink card for output to a reference monitor or projector.
sincohen: Excellent, thanks so much for that. I haven't needed such powerful graphics processing before, so this is a bit new to me. Much appreciated.
Two further questions:
1. Does a Decklink Card connect to my grading monitor
and my computer monitor as well?
2. We'll be grading footage from the BMCC, so will expect files in ProRes as well as RAW. Is a 12 core
processor advised, or would a Quad-core, or 6-core do the job?
thanks,
Simon.