Hi there =)

Jop, nvidia cards is still the pnly option intill OctanRender III so if You need a working solution now look for them.

Memory doesn't not add up, so You're still limited by the card having smallest amount of vram =) but..
Now You have out-of-the-core-texture functionality, so You can ...

Hello, I am researching for a cost-efficient 3d rig and have some hardware questions
(and would also like to contact a specific person privately for certain details, however since I'm new PMs are disabled)

Is NVIDIA still the only well-supported option as far as GPUs go? The FAQ says CUDA is ...