1x 1080ti mining bitcore
 
ccminer 2.2 (free open source): 25MHASH
ccminer sp-mod #4: 33MHASH


if you have 100 rigs with 1080ti. (600 cards) you boost your hasrate with 4800 MHASH per day with the same power usage.

And you will ROI in less than 8 hours.

with 100 cards you will ROI in 2 days.
with 50 cards you will ROI in 4 days
with 25 cards you will ROI in 8 days
with 12 cards you will roi in 17 days.

Expensive?

(whattomine.com)