I don't want to further this discussions but may be you dont realise some of the people who replied to you either design hardware for a living or has been in the hardware industry for longer than 20 years.
https://www.qualcomm.com/news/onq/2023/11/introducing-qualco...
It would be interesting if those saying that a regular GPU with 128GB of VRAM cannot be made would explain how Qualcomm was able to make this card. It is not a big stretch to imagine a GPU with the same memory configuration. Note that Qualcomm did not use HBM for this.
They already replied with an answer.