

The 7900XTX has 24 gigabytes of video memory vs. the 3080 Ti’s 12. That’s a big difference…
Here’s a couple Linux benchmarks by phoronix (don’t take this as literal game performance, rather as relative performance between different cards): https://www.phoronix.com/review/rx7900xt-rx7900xtx-linux/6.
As you can see, the 7900XTX performs much better.






The question is rather What is “reality”: the dream (et al.) or the physical world (what you describe as reality). See Descartes first two meditations (and note that he relies fully on the existence of God to prove the existence of reality later). In this case, us experiencing a “dream” just serves to outline the point; Descartes, for example, also suggests that we are being fooled by an evil daemon. If it’s a dream or an evil daemon — doesn’t matter; it would likely be something entirely beyond our comprehension anyway. But genuinely proving the physical world as being reality is very difficult.