Here's an overview:
NVIDIA Ampere GA106 and GA107 GPUs have been taped out a few weeks ago. This means mid-range Ampere cards will likely follow months later than the high-end models.
NVIDIA GeForce RTX 3060 likely uses the GA106-300 GPU. There may be SUPER or Ti variants with a "full" GA106-400 GPU.
The GeForce RTX 3050 is rumored to use the GA106-200. Perhaps NVIDIA will also make a SUPER version with a GA106-200.