Basically the difference is in the fan and the features. If one is overclocked or not, other than that its looks. Between those the difference is probably negligible. I just got a Zotac GTX 1080 Amp Extreme, that one has a higher clock speed, has customizable LED lighting and three fans, and intuitive power consumption, so its about $100-$200 more than a founder's edition GTX 1080. But its about features, cooling, clock speed and looks.