Octane does support using multiple cards for rendering (not in SLI mode though, they have to work as separate cards). But that currently depends on whether your card works with the CUDA 3.0 drivers or not. CUDA 3.0 version of Octane supports multi-gpu rendering and CUDA 3.2 version of Octane currently doesn't (NVIDIA made some changes to cuda that broke Octane's multi-gpu code, they are fixing it). I know the 480 and 470 cards are compatible with C3.0, so perhaps 460 is too.

You can use multiple 460 gpu's with the cuda 3.0 build but it won't see all the cores of the 460 (which is fully supported with the CUDA 3.2 toolkit.) After the multi-gpu re-write, all current generation CUDA gpu's will be running with full cores.

It may have been cause I was using the demo, not sure.

Anyway, I disabled the SLI and from my account page, I downloaded the full version.

I had a good play around with it yesterday afternoon. I found myself turning the samples down to 3072 or 4096. The images would really look good after about 2200 samples for what I was playing around with.

Its coming along...

I still can't help but wish it was Thea at times though LOL.

-Will