Few online calculators shows that 20mh per second is what you will get with gtx1060 but that's not always true, it's all about finding the perfect settings for your GPU yourself, gtx1060 6gb version can still do 25mh because I have one and that's how far I can push it up, some are getting 26 or 27mhs at just 80watts, honestly mining is all about tweaking for the perfect spot