That's why I'm waiting for the 3080ti so I can upgrade from my 1080ti12nm to 7nm EUV offers 50% perf/watt boost and is more efficient than TSMC 7nm - assuming the rumour Nvidia is using Samsung is true.
So just the drop in process size alone is going to offer a bigger performance boost than current gen
I don’t know if we’ll see 900 series to pascal 1000 performance which was nearly 100% performance boost but it will be much more than the 30% we got this gen.
I’m personally estimating anywhere from 50% to 80% generation boost from RTX2000 to RTX3000
And when you factor into that, that lots of people still have a 1080 or 1080ti and haven't moved to RTX yet - it will be a massive upgrade for them. 1080 to 3080 or 1080ti to 3080ti should be more than double the performance boost