Yeah, but the memory in something like a Millenium 2 runs at like 1/500th the speed compared to the memory in a modern GPU (like the GDDR6X in the RTX 30 series

Yeah, but the memory in something like a Millenium 2 runs at like 1/500th the speed compared to the memory in a modern GPU (like the GDDR6X in the RTX 30 series cranking out 21 GBit/s per pin). Meanwhile the physics stayed the same.