http://cryptomining-blog.com/8526-mining-performance-of-gtx-1080-ti-with-ccminer-2-0-rc2/
So 7 of the GTX 1080 ti will pull close to 150 MH/s - but at 1750 watts JUST for the cards, figure close to 2KW for an entire single rig if you can get all 7 running on one rig.
There's also the issue that the 1080 ti is ONLY available in founders edition (so far), at a significant premium on price, and VERY limited availability - and running the calculation for 7 or these on whattomine at the stated figures in the post show them LOSING MONEY if you have to pay more than 1c/kwh on your electric.
On the other hand, this is actually PROFITABLE up to about 10c/kwh electric - but nowhere near as profitable as mining ETH would be on those cards, much less something they're GOOD at like lyra2r2.
I wouldn't use the 1080's but rather the 1070's... You can pull about 420 S/s per card for zcash and for a 6 card rig you could get the wattage down to about 1000 in total if you configure it properly. ROI on one of these rigs would be 6-8 months dependent upon price but at least you can purchase all of the parts anytime you wish unlike with Baikal right now.
I concur - 1070's are the sweet spot for power/hash/cost efficiency today; with only one except. AMD RX470/480 beat the 1070 for ETH/ETC ... 1070's win for pretty much every other GPU algo.
Mining4Bacon
Thanks for all this info guys....I'm trying to find that sweet spot where a gpu is good for eth, xmr, zcash and maybe X11...I'm reading a lot of good things on rx 480's, now I need to decide on MSI red's, sapphire....4b or 8gb....lol....gotta love mining... oh, I should mention electricity is included in my rent, so consumption is not toooo much of a worry...