I personally would go for the 1080. For the same hash you need 1 GPU less.
So its more 11 x 1080 or 12 x 1070ti.
With 1080 you can add 1 more GPU later without buying Mainboard, PSU and so on.
With 1070ti you can mine some other coins too.
But you asked for ZEC so my advise is the 1080.
Thanks for your way of thinking and going about it. I didn't think of it like that.
So I plan on going with a gtx 1080, now my problem is that I have this power supply:
https://www.newegg.com/Product/Product.aspx?Item=N82E16817194132It's a enermax maxtytan 1250 watt power supply and only came with individual pcie 6+2 pcie cables:
https://i.imgur.com/cITBqkI.jpgBecause of these pcie cables I guess I'll need to use 2 pcie slots from the PSU per each card since gtx 1080s have 2x8 pin connectors right?
Does anyone know where I can buy pcie cables that will allow me to attach two 6+2/8pin connectors per pcie cable that will be compatible for this power supply?
