They're all pretty much the same performance wise. The difference will be in the cooling solution witch in turn affects performance. The cooler your card is the better performance it will be able to maintain. So I would get the cheapest card within reason yo also have to take into account that some companies are based out of the US so it'll be more difficult to obtain warranty support if something goes wrong. I just purchased a 1080 myself new for $515 from a company called MANLI, never heard of them turns out it's same parent company as ZOTAC AND INNO3D so that made me feel a little better about it. So far I've been very happy with my purchase the triple fan keeps the thing ice cold (not really, under 50c) while gaming. It also overclock well so I guess I got lucky, but in the end they're all pretty much the same as they're all the same chip