I have 4 GPUs in my rig, 2 1080Ti FE and 2 1080 FE. I use them for mining nearly 24/7 (while I'm at work, at home relaxing and when sleeping) and I use them for FStorm GPU rendering - blazing fast stuff to have alongside Corona. Though I will say I prefer FE cards - if anyone knows how to make a decent board - it's Nvidia. Far too many failed partner boards out there for my liking, so I'll sacrifice a bit of cooling for reliability. Had all 4 cards since launch and they're kicking like new. Getting to 2100MHz core on all 4 cards isn't an issue under full rendering load either, which I can't say for many partner cards :)