I'm running BAMT with 1GB memory and 2 x R9-280X cards. No need for ram, only needs the memory on the cards themselves.
I thought so, I just can't for the life of me figure out what's wrong, also finding it ridiculously hard to try different drivers, often making the computer unable to boot at all (need to uninstall it via a terminal during bootup to even get to the desktop again).