What is the architecture's shape? A chain of cheap SRAM heavy chips as proposed in the Microsoft paper? I feel like AMD's 7900 XTX strategy would be good too:

What is the architecture's shape? A chain of cheap SRAM heavy chips as proposed in the Microsoft paper? I feel like AMD's 7900 XTX strategy would be good too: a bunch of small, cheap (LPDDRX?) memory controller dies to form a massive bus for a central compute tile.