I’am usually running only 3070s in my rigs. For my PC the 3070 is to bad for 1440p on 21:9 screen.
With a bit luck I got a Aorus RTX 3080 Xtreme Waterforce (aio watercooling) for a good price. I know the issue with the vram temps but thought with a watercooler its not a big deal, but it is a big deal… I changed the pads but temps are nearly the same. Fans from the radiator are running at 100%, Nicehash settings are on Lite. With case window open and extra fans I can squeez out 90MH/s / 226W at 100° VRAM on Medium…
So I can not recommend the aio model from gigabyte, I dont know if other companys have better solutions.