China has launched a powerful underwater data center off Hainan, leveraging seawater cooling technology to boost AI computing power while cutting energy costs. This subsea data hub can handle 7,000 DeepSeek AI conversations per second, matching the performance of 30,000 high-end gaming PCs. The energy-efficient AI data center supports machine learning, game development, and marine research, solidifying China’s position in the global AI and semiconductor race.