I think it's all speculation at this stage.
As this source says different memory bandwidth/ boost clock is also different.
The memory speed is also something to take account for.

Check the specs here as well:

https://wccftech.com/nvidia-geforce-rtx-3060-12-gb-gddr6-graphics-card-official-ampere-ga106-gpu-launching-in-february-for-329-us/