I was wondering if you could tell me how 4k Sony f65 files would run on my computer. I have a mac pro with the raedon 5770 card for the gui, a decklink card, and I need another card for the GPU. I only have the MacPro and not an expander chasis. From looking at the config guide for Resolve 9, it looks like GTX 570 would be the best (fastest) option? Would I then output video at the half-res proxy, is that correct? I have a red rocket card, but I'm guess that only works for r3d files.