>>106482831
AMD was prioritizing a GPU design that minimized the size of the 5nm Graphics Compute Die while trying to compete against the 4090 & 4080.
Smaller 5nm chips needed for Radeon cards means more TSMC 5nm wafers are available for Epyc & Ryzen CPU chiplets.
AMD gave more VRAM than the 4080 because that's how they compensate against GeForce cards (RX 480 & 580 8GB vs 1060 6GB etc.)