There is nothing proven. Just alot of rumors and speculations. The 4080 will be 20-30% faster than the 3080 as usual
The 3080 is 55 percent faster than the 2080, its 20/30 percent faster than the 2080ti
The 3060 is inbetween the 2080 and the 2080 super, the 3090 is barely an improvement over the 3080, that's the difference with next gen
The 4090 is grossly more powerful than the 4080 they made sure to make the difference very significant because people complained about that
and the 4090ti is ridiculous as well as the 4080ti
The 4080 will be 40 percent faster than the 3090, the 3070 20/30 percent, and the 4060 is a 3090
The leaked specs confirmed, just like they did for the 3080, except the 3080 had marginal increase in cuda cores compared to the 2080ti, this time it's a huge difference, and the leap from the 4080 to the 4090 is even more significant
All the leaks for the 3080 from the same source were true, and they happened months before the june released was delayed to september
if you had a 20 series there was no need to buy 30 series GPU, the 30 series appeal was the price because the 20 series was vastly over priced being the first RTX cards, I mean the 2080ti msrp is still 1k, the 2080 was 790, so the 3080 released at a cheaper msrp.
the best deal is was the 3060 which can still do 4k 60fps because of the Vram, the 3080 only has 10 gb of vram, the 4080 will have 16gb, the 3080 will be a 1440p card going forward because next gen hasn't even started yet, the 3080 is great for older games from the ps4 era in 4k not new games it can't even hit 90fps in 4k in Horizon Zero 5 and its a racing game, you have to turn settings down to high