That sounds like an overly specific target audience: - you need more than 16 or 32 GB of ram. - but less than 100. - speed is important. - but losing a fact

That sounds like an overly specific target audience: - you need more than 16 or 32 GB of ram. - but less than 100. - speed is important. - but losing a factor 4 compared to a GPU is fine. - money is very limited. - but paying 6000 for a mac studio is cheap. - this is very important professional work. - but I don't need servers, ECC ram, raid, another OS... Don't get me wrong, I also think Nvidia is heavily price gouging, but there are definitely trade offs and it is not clear at all why 80GB is your magical number and not, say, 108 or 28.