英伟达发布800VDC白皮书，关注GaN及SiC功率器件
Ping An Securities·2025-10-21 03:16

Investment Rating - The industry investment rating is "Outperform the Market" [1][33]. Core Insights - NVIDIA's recent white paper on the 800V DC architecture highlights energy consumption as a critical factor affecting the development of current and next-generation AI data centers. The power density of GPU racks is approaching 100 times that of web servers and continues to grow exponentially. Power infrastructure, once secondary, is now on par with or surpassing computational space [3]. - The 800V DC architecture significantly reduces current, copper usage, and cable volume compared to 54V DC or 480VAC systems while maintaining safety and scalability. It enhances overall energy efficiency and density through simplified power paths and increased transmission voltage [3]. - The performance of the 800V DC system relies on GaN (Gallium Nitride) and SiC (Silicon Carbide) power semiconductors, which have unique advantages in high-voltage, high-frequency, and high-efficiency scenarios. The market for GaN and SiC is expected to grow significantly, with GaN power devices projected to increase from $390 million in 2024 to $3.51 billion by 2030, representing a compound annual growth rate (CAGR) of 44% [3]. - The report suggests focusing on the GaN and SiC supply chain, recommending companies such as Sanan Optoelectronics, China Resources Microelectronics, Innoscience Technology (Hong Kong), Tianyue Advanced, Sinda Semiconductor, Silan Microelectronics, and Times Electric [3]. Summary by Sections Industry Overview - NVIDIA's white paper emphasizes the transformation of data centers into "AI factories" driven by GPU advancements, highlighting the critical role of energy infrastructure [3]. Market Trends - The demand for GaN and SiC is driven by applications in AI data centers, new energy vehicles, and humanoid robots, indicating a robust market outlook [3]. Investment Recommendations - The report recommends monitoring the GaN and SiC industry chain, identifying key players for potential investment opportunities [3].