Why would anyone already paying $700-$850 for a GPU buy the "off brand" with similar rasterization performance, likely inferior RT/AIS performance, and a reputation of poor driver support to save $50? Nobody with the means to pay that much gives a fuck about $50, that's why most AIB 3080 models $800+. If AMD has any aspirations of genuinely capturing marketshare (not just Nvidia's shortages crumbs), they're going to have to undercut them at least $100, and even that would do very little. $200 would be required for genuine market disruption.
1. NVIDIA has had their share of driver issues to work out post-new architecture launch, including the recent (and in my opinion, disastrous) Ampere launch where they withheld said drivers from developers that were part of the reason why said launch was such a mess. This is not an AMD exclusive issue.
2. It's probably not going to be just $50, even before considering regional pricing and currency conversion; i'm from Canada where the difference, assuming it's closer to $100 USD, could be anywhere from $125 to $160 depending on how aggressive AMD is with their MSRP. That's a fair amount of money on what will be the most expensive component of most people's system.
3. Setting aside AMD having or lacking a DLSS equivalent, DLSS and raytracing are not a thing that I care about; both are poorly supported at the moment and while the latter may see an uptick due to the hardware raytracing on consoles, the former is only available on a dozen or so games with widely varying performance uplifts that are not true renderings at the resolutions they're being displayed at.
4. All leaks have suggested that the 6900XT will boast more memory than the 3080, which makes it a more appealing purchase for 4K and potentially 1440p depending on how things develop over the next few years.
5. The 3080 is not a great overclocker. While the verdict is still out on how much one can squeeze out of a 6800/6900 XT, if it's anything like the 5700XT, there should be a notable amount of headroom to tinker around with.
6. Between the efficiency improvements from RDNA 1 and Ampere's noticeable uptick in TDP, the 3080 competitor may cost one less for the same relative performance when factoring in how much it costs to run said GPU at stock performance. We still don't know this for sure but we'll find out soon enough.
I'm going for whichever of the two gives me the best bang-for-your-buck on the high-end.