

Nvidia Rubin Reveals Power as AI's Real Bottleneck
Nvidia's Rubin racks will draw 230 kW each, and a new Digitimes analysis confirms electricity, not GPUs, is now what limits AI expansion.
Chips, data centers, and the trillion-dollar buildout
Compute, not capital, has become the binding constraint of the AI industry. Hyperscalers have announced over $660B in data center capex, frontier labs sign multi-year GPU leases worth tens of billions, and a single training cluster can consume the power of a small city. This hub tracks the silicon roadmaps, data center buildouts, supply chain moves, and compute economics that decide which AI companies can actually scale.


Nvidia's Rubin racks will draw 230 kW each, and a new Digitimes analysis confirms electricity, not GPUs, is now what limits AI expansion.


Google will pay SpaceX $920 million a month for 110,000 Nvidia GPUs through June 2029 to feed Gemini Enterprise demand it failed to forecast.


Anthropic will pay SpaceX 1.25 billion dollars a month for over 220,000 GPUs through May 2029, a 45 billion compute bill that dwarfs its own revenue.