Stilt bios
TC 28456
Threads 1
Gpu 980
Mem 1375 or 1450
XI 256
480kh/s
If your card is stable at higher clocks you can get up to 560kh/s with 1060 gpu engine.
Don't push your graphic card too much, way higher electricity consumption..
I've been pushing 14 of them at these exact settings since February. If you get less than 480 per card you are wasting your cards earning potential and may as well trade it in for a few 270's. (should do this regardless IMO. The 290(x) is not very good for mining.)