EpIckFa1LJoN :
From what I know there are only two models of Asus ROG Strix 1080. Overclocked and not. If you were to overclock it yourself you would most likely be able to get the same performance out of the non-OC version. Other than that, according to the specs on the Asus site they are pretty much exactly the same, maybe they are selected with better parts on the OC version but it's kind of impossible to know for sure.
However, you could get a lot more bang for your buck with a Zotac AMP! Extreme 1080. The card has a lot more power potential and beefier heatsinks. Its about the same price as the non-OC Strix with higher core and boost clock, and higher memory clock than either the OC or non-OC version of the Strix. It has a better PCB than the Strix so I imagine you could overclock it a little better than the Strix.
That's what I have and I havn't touched any of the voltages or clock speed settings and I regularly get 2063MHz boost clock, and my card never gets above 40C with a custom fan curve set with MSI:AB. It's also quiet enough to not hear. Fans usually don't go over 40% speed.
these are the models from which they offer: (all prices in CHF)
ASUS GeForce GTX 1080 STRIX A8G-GAMING with a price of 765.-
https://www.digitec.ch/de/s1/product/asus-geforce-gtx-1...
ASUS GeForce GTX 1080 STRIX 8G-GAMING with a price of 791.-
https://www.digitec.ch/de/s1/product/asus-geforce-gtx-1...
ASUS GeForce GTX 1080 STRIX O8G-GAMING with a price of 899.-
https://www.digitec.ch/de/s1/product/asus-geforce-gtx-1...
ZOTAC GeForce GTX 1080 AMP Extreme with a price of 791.-
https://www.digitec.ch/de/s1/product/zotac-geforce-gtx-...
ZOTAC GeForce GTX 1080 AMP Edition with a price of 861.-
https://www.digitec.ch/de/s1/product/zotac-geforce-gtx-...
the thing is, id like to be sure about if it would mater when you overclock them.
if its higher price = higher chance to achieve a higher overclock.
about the -
"It has a better PCB than the Strix so I imagine you could overclock it a little better than the Strix."
the noise and the heat doesnt really matter to me. even if i would go with an Zotac instead of an asus, i still would wonder the same. does card x or y out of the same series overclock better and why. does it matter to pick the expensive one over the cheaper one really matter?
how can you be certain the Zotac AMP has a higher quality PCB that the Asus series? could you link me to the info that states this please?
thank you very much for the reply and input!