Thanks I will read it.

 with a nvidia 1070
I can do 430sol  use about 125 watts 

with a nvidia 1080 ti
I can do 600 sol  use about 155 watts

the nvidia   can use msi afterburner

set power at 60%
set core at 100
set memory at 300
set fans at 75% manual

all of them
 the 1080 ti
 the 1080
 the 1070
 the 1060 

 All are better for zec then  any amd. in terms of watt to hash ratios.  no need to flash  but they are not cheap.  it is a tradeoff as to use amd or nvidia   Lots of space for your gear and lots of cheap power amd are better.   Space is tight  and your power cost more then 12 cents per watt the  nvidia are better.