testing Windows miner now. I have 2x 1070ti + 1x 1080. Processor is the cheapest Celeron.

Reported (by miner) hashrate is 450 + 450 + 500 without any tweaks. About 20-30% shares rejected.

Also: miner doesn't work without latest nvidia drivers.

I'll report back after 24 hours, but honestly doesn't seem like big profits.