One GPU vs Two GPU's

[Streetwise]

I'm probably answering my own question, but is there any advantage to dual GPU's if all I'm doing are CPU-based renders? (single large image sent off to my farm). At present, I am not doing any RT work, but use interactive mode quite a lot (CPU based anyway). I'm interested in RT at some point, but for my current workflow, it doesn't fit well.

I have dual GTX780's, but one is acting up. Thinking about replacing both with a single GTX1080 TI, or something similar. Will I notice any difference? Maybe a single GTX 780 is good enough for my workflow?

Thanks.

[glorybound]

I had two and I dedicated one for my 4K monitor, leaving the other, more powerful one, for V-Ray.

[Streetwise]

I had two and I dedicated one for my 4K monitor, leaving the other, more powerful one, for V-Ray.

I assume you were using the second one for RT work and the first one for UI?

[glorybound]

I assume you were using the second one for RT work and the first one for UI?

The first one was for my monitor and the second one was for RT. I am pretty sure RT will use all your available GPU cards. I think like network rendering, it'll distribute across all cards.

[Morne]

The first one was for my monitor and the second one was for RT. I am pretty sure RT will use all your available GPU cards. I think like network rendering, it'll distribute across all cards.

You set which ones you want to use. You can even set the CPU to "act like a GPU" and add it also for CUDA GPU rendering