The difference in price is much greater than in performance
Due to the ban on the RTX 4090 in China and a number of other countries, as is known, the adapter has become much more expensive in Western markets. Against this background, the authors of Hardware Unboxed decided to compare the Nvidia flagship, for which they are now asking about 2000 dollars/euro, with the Radeon RX 7900 XTX, which, on the contrary, is getting cheaper and now costs less than 1000 dollars/euro.
Of course, the RTX 4090 is faster. Not always and not everywhere, but in most cases. But, for example, in Full HD and without tracing, the advantage of the Nvidia flagship is on average only about 12%, and in some games the AMD card is even faster. Of course, the RTX 4090 is not designed for Full HD, but this result should also be kept in mind.
At 1440p the difference grows to 18%, and at 4K it is already 21%, and there are no games left (in this particular selection) where the opponent would be faster.
That is, if we are not talking about ray tracing, then the RX 7900 XTX is on average 21% slower at the target resolution, but is half the price.
If you take traces into account, the RTX 4090 comes off even further: by 22%, 28% and 34% in the same order of resolutions. True, what’s interesting is that even in 4K there is one game — Fortnite — which works better on the RX 7900 XTX, by 11%. But the difference on average is still very large, although AMD’s flagship is ahead in terms of price-performance ratio. Although it is worth noting separately that in Alan Wake 2 the Radeon card is slower than the GeForce by a huge 66%, in Cyberpunk 2077 — by 59%, and by 58% — in Ratchet & Clank: Rift Apart. That is, there are games where in this mode, even at a huge price, the RTX 4090 turns out to be more profitable.
Of course, even initially the RX 7900 XTX was aimed at competing with the RTX 4080, not the RTX 4090, not to mention the pricing situation today.