1
i just added a spare GPU to my system to see if rendering with both will have a big difference on speed. right now doing a test render to check thermals and both cards are peaking at 75 degrees which is fairly decent for such a tight fit.
as for the render times – each frame in the bubble animation renders in 16 seconds less than with a single GPU so a full video would be done 3 hours faster with both GPUs. pretty incredible stuff. i wonder how much better it would run with a more powerful card.
current setup: RTX 2080 Ti + GTX 1070 Ti