Nvidia, AMD, CoreWeave battle for AI data center supremacy

The race for AI infrastructure dominance has entered a new phase as customers demand redundancy and alternative suppliers. CoreWeave, a GPU cloud provider backed by major investors, publicly warned that Nvidia faces capacity constraints and risks losing customers if it does not dramatically expand production. AMD is positioning itself as an alternative, touting its MI300 and next-generation chips for AI workloads. This competitive dynamic is fundamentally reshaping capex budgets across the tech sector and creating a multi-year spending cycle that extends well beyond 2027.

Nvidia's Iren acquisition signals the intensity of the competition. Nvidia is acquiring infrastructure assets and data center capabilities directly rather than relying on third-party operators, suggesting management believes the market cannot scale fast enough without vertical integration. Cerebras Systems' IPOInitial Public Offering - a company's first public sale of stock. price surge to $150-$160 reflects investor appetite for any company touching AI infrastructure. Applied Materials, ASML, and other semiconductor equipment makers are guiding for record capex cycles as memory and logic suppliers race to add capacity.

The implications span geographies and competitive dynamics. US-based chip makers and cloud providers win; Chinese manufacturers of commodity DRAM and logic face pressure from oversupply. European semiconductor equipment makers like ASML are seeing multi-year order books. South Korea's memory makers (SK Hynix, Samsung) are running their fabs at capacity and investing heavily in new nodes. The capex cycle is so intense that some analysts are warning it will lead to oversupply and margin compression by 2028-2029.

Sceptics worry that the capex intensity is a sign of diminishing returns on AI investment. If language model performance plateaus and new use cases fail to materialize, the infrastructure buildout will be massively stranded. Additionally, geopolitical risks (China restrictions, Iran war supply shocks) could disrupt equipment and materials availability, forcing delays in capacity plans. The bet is ultimately on sustained AI demand growth justifying trillions in capex; if that thesis breaks, valuations for Nvidia, AMD, and infrastructure plays will compress sharply.