Not really for 1.5 - 2k $ cards, no; 295x2 for instance approached 700W under stress testoh, so if nvidia does it, then power consumption doesn't matter? got it, thanks!
I'd be pretty sure; there already isn't that much competition when looking at the whole picture - particularly the horrendously bad ray tracing performance of RDNA2, which will definitely become much more important before the life cycle of current cards is over (I'd wager that in two years or less more than half of new titles will implement some sort of RT functionality) and last but definitely not least, DLSS which will definitely help to prolong the usability of Ampere cards especially in 4k, but also lower resolutions further down the line. Now if we imagine considerably better power efficiency coupled with notably higher clocks on top of this (from 7nm TSMC), I don't think what I said is over exaggerated at all (although obviously, AMD would have to position their MSRPs much lower in that case)I wouldn't be so sure about that. The 8nm Samsung and 7nm TSMC are fairly similar in density. There are pros and cons on both sides and NV went for better yields and lower price per wafer instead of slightly better power efficiency. Either way it would have been better for NV to go TSMC but saying absolutely no competition if they would have gone 7nm is over exaggerated.