GeForce 3060 (12GB) Specs
The main difference is that
|GeForce RTX 3060
NVIDIA CUDA® Core 3584
Boost Clock (GHz) 1.78
Base Clock (GHz) 1.32
Standard Memory Configuration 12 GB
GDDR6 memory Interface Width 192-bit
|GeForce RTX 3060 Ti
Mem 8 GB
So, other than the number of CUDA cores, the amount of memory and memory interface width are different. The other thing that is being talked about is that it is “anti-mining”.
Mr. Linus seems to be bitterly disappointed.
There were quite a few stores still in stock around 2:30 on 2/26.
Maybe you all gave up on it thinking it was no longer available, or you forgot about it, or it was the middle of the night, or you didn't know when it was released in the first place.
There are quite a few out there if you look for them!