Nvidia's 45°C cooling design cuts data center water use to near zero (blogs.nvidia.com)

Nvidia has unveiled its latest AI server infrastructure, the Rubin generation, which features a groundbreaking 100% liquid cooling system capable of operating at temperatures up to 45°C (113°F). This marks a significant advancement for the AI/ML community, primarily because it drastically reduces the energy required for cooling, a major expense in data centers, traditionally accounting for up to 40% of electricity consumption. The closed-loop system eliminates the need for evaporative cooling methods, positioning Nvidia at the forefront of creating more sustainable and efficient data center infrastructures. By enabling cooling without the reliance on vast amounts of water or mechanical chillers, the Rubin architecture not only promotes significant cost savings—potentially over $4 million annually for a 50-megawatt facility—but also offers the potential for 100% reduction in water usage in favorable climates. The innovative design allows for higher rack density, less noise pollution, and the flexibility to operate in warmer environments without compromising on performance. This advancement represents a crucial step toward sustainable AI development, addressing the growing need for more efficient cooling solutions as AI workloads continue to expand.