Yeah I know. Vega 10 = V64 and V56. Polaris 10 = RX 580/480 and RX 570/470. I just have a hard time seeing how they can fit this huge thing on MXM-B. The GPU die (486mm^2) and HBM2 (92mm^2 each) together is 670mm^2, and the molded package according to that AMD slide is 815mm^2. I'd imagine the package height is larger than normal as well given the interposer that the GPU and HBM stacks sit on. At the very least, massive heatsink changes are needed.