Bus width for 5060 Ti / 9060 XT?
Bus width for 5060 Ti / 9060 XT?
The simple explanation. More capacity, same bus. You can use larger chips, you can use a set of two chips per channel. Very similar to how dual channel memory works with 4 slots.
Each bus is 32bit, it can support 1 or 2 chips.
If I recall in a more technical manner there is an additional pin that is used to indicate stacked memory and is used to shift between address locations.
Well, that isn't exactly correct. 3GB chips do exist for GDDR7. Just hasn't been launched in a product yet. Nvidia 50 series Super cards are expected to have these. So 9GB, 12GB, 18GB, and 24GB variants of existing 6GB/8GB/12GB/16GB cards could happen. They probably won't do all of the possibilities though, as there is little call for a 24GB 5060Ti, and that would be doubly expensive.
They applied the identical memory stacking method previously used in the 4060ti.
It's unlikely they'd handle it for a mobile version. I think desktop uses GDDR6, as I remember.