I have two similiarly specced PCs, which usually allowed me to render at double speed. What I didn't notice until recently is that there seems to be a tessellation issue on my AMD card. I've tried different drivers and driver settings, and I've played around with SFM console commands, but to no avail. I'm not sure if it's just certain models either.
It's not too big of an issue since I can just use the AMD system for work while the Nvidia system renders, but it still takes a bit longer than initially planned to render all the shots (about 0.5-2 hours for 10 seconds of footage, depending on complexity).
Once again, I'm reminded why I did the switch to Team Green back in the day... Anyway, the render is complete, editing will be done by tomorrow.