Mental!
This thing will exist simply because it can and so nvidia can sit at the top of every chart in gaming performance.
Also, if these are going to be using less memory chips, would that not lower the bandwidth?
I think someone needs to step in and make gpu makers think about what they are doing. Every other sector of the electronics market is getting bashed with eco friendly restrictions, while these guys are making 500w gpus, just because they can. I mean we can make 2000w vacuum cleaners but we're not allowed anymore in the interest of conservation, its not like there are too many scenarios where you NEED more than what the 3080 can provide performance wise