You quite literally just said you would pay 10-20% more for an NVIDIA card even if you didn't care about DXR or DLSS. You clearly have a bias.
Nope, stop right there. I said,
because of their DLSS support and DXR hardware, I felt it could be justifiable to spend 10-20% more on an Nvidia card that was
otherwise equal in performance to an AMD card. That's not a bias. That's a way of looking at features and performance and saying a higher price could be justified. I also went on to give concrete example of how, with or without DXR, it's difficult to accept Nvidia's current prices. If every game out there supported DLSS and DXR, Nvidia could justify even higher prices, but right now it's probably only 25% of major releases, if that... and the newer ones often support FSR2 as well, which mostly removes any DLSS advantage.
So again, to be clear: If two cards offer equal performance
outside of DLSS and DXR, then I think it's not out of the question for people to pay 10% to 20% more for the Nvidia card
because of DLSS and DXR. To give a concrete example, the RTX 3080 12GB and the RX 6800 XT have similar rasterization performance at 1440p ultra (102.0 fps on the 6800 XT, 103.4 fps on the 3080 Ti). Now if we were to look at the base MSRPs, the 6800 XT is supposed to cost $650 and the RTX 3080 Ti $1200. By my reasoning, a price of $715 to $780 for the RTX 3080 Ti might be justifiable (and this is also why I think the RTX 3080 12GB has been at least more reasonable than some of Nvidia's other cards, since performance is very close to the 3080 Ti).
At current prices, though, it's not even close. RX 6800 XT was selling for $515 on sale this weekend (sold out now). RTX 3080 12GB has been sitting at $900, and the RTX 3080 Ti at $1,150. It's laughably bad and I can't see why anyone would be paying such prices for Nvidia's previous generation hardware. Like, I have a friend that picked up an RTX 3080 Ti on sale back in August or September for $680. That was a great deal and worth considering! I don't know if Nvidia and its partners actually managed to sell through all their Ampere GPUs or what, but the current prices on anything above the RTX 3050 are pretty insulting.
Even the RTX 3050 isn't great. Performance (in rasterization at 1080p ultra) is 23% slower than the RX 6600 — or the RX 6600 is 30% faster, if you prefer. There's actually no direct AMD competitor on performance, because the 6600 is too fast and the 6500 XT is too slow. If you flip the "10% to 20% more" around, I guess you could say I think it's not out of the question to sacrifice 9% to 17% performance at the same price for an equivalently priced Nvidia card. Both the RX 6650 XT and RTX 3050 can now be found for $250... but the 3050 is 36% slower for the same price. And it also loses in DXR (without DLSS). RTX 3050 feels more like a $200 product.
As for the AMD vs. Intel, or AMD vs. Nvidia articles, we do those because they get a lot of traffic, and people don't want a wishy washy tie. I'm personally fine with ties, but others prefer a clear winner. And because these are regularly updated features, sometimes things get outdated (so old charts that are no longer relevant). It's an aggravating part of writing about CPUs or GPUs: always going back to update things for SEO purposes.