how much wattage do I need

[QwerkyPengwen]

Do from all of my research a 600w psu is all I need for a 1080 ti. However, I plan on overclocking it a far as it'll go so I know I'm going to need a bigger one. But just how much bigger? I've used a few different psu calculators and a couple are saying that with the overclock I currently have on my cpu along with the other things in my system that draw power that I'll need just a little above 600w so a 750w is recommended, however on other calcs it says I'll need a whopping 1200w and that doesn't seem right. I would naturally assume for a pascal card that 750w is perfect, however, can I actually get away with my current 600w or can o do lower than or do I need higher than a 750w? The 1080 ti cards I'm looking at use 2x8pin. I'm looking at either the Zotac Mini 1080 ti or the amp extreme 1080 ti since I can get one for $800 and the other for $850

 

[Dunlop0078]

Pascel cards are voltage locked, so even if you up the power limit and push clocks as far as you can stable it wont use much more power than it would stock.

A quality 600watt psu is more than enough for a 1080 ti and 6700k.

 

[QwerkyPengwen]

Even when the voltage is allowed to go up to 1.093v? Because stock voltage settings only peak at like 1.06 but typically stay around 1.03