Bottom line: It makes more sense for Nvidia to wait.

Two long years after the GeForce RTX 20-series kicked off real-time ray tracing and uncompromising 4K performance in earnest, Nvidia finally took the wraps off its hotly anticipated successors on Tuesday. The first GeForce RTX 30-series GPUs are damned impressive, culminating in the ferocious GeForce RTX 3090 with 24GB of cutting-edge GDDR6X memory and enough power to game on an 8K display. But glancing over the launch lineup, one things sticks out: Why is there no GeForce RTX 3080 Ti?
…
Continue here:
https://www.pcworld.com/article/3573374/why-theres-no-geforce-rtx-3080-ti-yet.html