Any reason to have more than 1 GPU if not doing GPU rendering?

V-Ray V-Ray Common Hardware
1

So is there? Do GPU-accelerated modules of Vray such as Lens FX, Vray Denoiser and Nvidia denoiser benefit from more than 1 GPU?

2

NVIDIA denoiser and lens effects - no.
V-Ray denoiser can do it from the standalone tool, but the option for multi gpu denoising is not exposed in the 3ds Max UI.

Best,
Blago.

3

Thanks for the quick reply, Blago. When you say that multi gpu denoising is not exposed in the 3ds Max UI is that “yet” or it is not planned to be in the foreseeable future?

4

It is very easy to do so, the question is if it makes sense.
From the Max UI, you rarely denoise animations. GPU denoising get the denoising from minutes to seconds.
Probably we have to make it always use all the GPUs that you have, without adding an option at all. The best thing is, that if you have even AMD and NVIDIA GPUs in the system, it can denoise them using both.

Best,
Blago.