World's First Diamond-Cooled AI Servers

The core technology leverages synthetic diamond's thermal conductivity, which is about five times greater than copper, the current industry standard for heat management. This allows heat to be dissipated much more rapidly, a critical factor as high-performance GPUs in AI data centers can generate extreme heat and create localized hotspots that conventional cooling struggles with. Akash Systems' approach is additive, designed to complement existing air and liquid cooling solutions rather than replace them. By integrating a layer of synthetic diamond, the system can reduce GPU hotspot temperatures by 10-20°C even in servers that already use advanced liquid cooling. This prevents thermal throttling, where a GPU slows down to avoid overheating, allowing for more sustained peak performance. The company's roots are in developing GaN-on-Diamond (Gallium Nitride on Diamond) technology for satellite communications, an environment where efficient heat removal is critical due to the lack of airflow. This expertise in bonding diamond to semiconductor materials is now being applied to the terrestrial challenge of cooling power-hungry AI chips. The servers pair this diamond cooling with AMD's Instinct MI350X GPUs, which are built on the 4th Gen AMD CDNA architecture. These accelerators feature 288GB of HBM3E memory and are designed for large-scale AI model training and high-performance computing (HPC) workloads. The combination aims to boost energy efficiency, potentially increasing performance-per-watt by up to 15% in high-temperature data centers. Founded in 2016, Akash Systems has raised over $83 million from investors including Khosla Ventures and Founders Fund. The company has already secured a $300 million launch order for these new servers and previously delivered diamond-cooled NVIDIA H200 GPU servers to NxtGen, India's largest sovereign cloud provider.