This isn't the 80s when compute doubled every 9 months, mostly on clock scaling.
I believe Nvidia has some published numbers for the 5000 series that showed DLSS off performance, which allowed a fair comparison to the previous generation, on the order of 25%, then removed it.
Thankfully the 3rd party benchmarks that use the same settings on old and new hardware should be out soon.
Revolutionary developments are: multi-layer wafer bonding, chiplets (collections of interconnected wafers) and backside power delivery. We don't need the transistors to keep getting physically smaller, we need more of them, and at increased efficiency, and that's exactly what's happening.
There is still progress being made in hardware, but for most critical components it's looking far more logarithmic now as we're approaching the physical material limits.