I went to microcenter and went to ask if they could order me a water cooled card and when I went to New egg, there it was! for $950 the

     Graphics Card GeForce® GTX 10 Series AORUS GeForce® GTX 1080 Ti Waterforce Xtreme Edition 11G

AORUS GeForce® GTX 1080 Ti Waterforce Xtreme Edition 11G

http://www.gigabyte.us/Graphics-Card/GV-N108TAORUSX-W-11GD-rev-10-11#kf

its pretty nice, no more fan issues, or heat issues, I could leave my PC on in the blazing heat and not worry. And the price looks pretty good I think regular 1080tis went for $800-850

So I have this power supply

EVGA 500W 80Plus Power Supply Unit and it has 2x 8pin (6+2)

I have a 1070 in there, would I need a new power supply, if so which one? Is there a golden standard miners go by?