Nvidia remains the core of the AI supply chain: in Morgan Stanley's bill-of-materials teardown of the next-generation Rubin VR200 rack, GPUs are still about half the total cost, as Nvidia sells rack-scale AI infrastructure. The teardown also shows HBM with the largest cost increase, NVLink Switch and other networking chips roughly doubling, and PCB content up 233%, so value in rack-level upgrades is spreading to memory and networking as bottlenecks shift to communication between GPUs. x.com


