US Warns Nvidia on AI Chip Sales to China

- The latest warnings came from U.S. Commerce Secretary Gina Raimondo, who stated, "If you redesign a chip around a particular cutline that enables them to do AI, I'm going to control it the very next day". This signals a more aggressive stance, moving beyond static technical thresholds to a focus on the intent and capability of the chips. - To comply with initial U.S. export controls announced in October 2022, Nvidia developed modified AI chips for the Chinese market, including the A800 and H800, which were designed with reduced performance to fall below the regulated thresholds. The original rules restricted chips based on their input/output bandwidth, a specification Nvidia was able to engineer around. - In response to Nvidia's workaround, the Commerce Department updated its export controls in October 2023, effectively banning the sale of the A800 and H800 chips as well. These new rules focus on "performance density," a metric designed to be more difficult to circumvent by simply reducing certain specifications. - Nvidia is reportedly developing a new set of chips—the HGX H20, L20, and L2—to adhere to the latest, more stringent U.S. export rules. However, some Chinese firms like Baidu, Tencent, and Alibaba are reportedly hesitant to purchase these further downgraded chips and are exploring domestically produced alternatives from companies like Huawei. - The financial stakes for Nvidia are substantial, with the company warning that the latest export controls could impact an estimated $5.5 billion in revenue from China. China and other affected markets have accounted for 20% to 25% of Nvidia's data center revenue. - Commerce Secretary Raimondo has emphasized that protecting national security is more important than short-term revenue for U.S. companies, a sentiment she has directly communicated to chip company CEOs. She has likened the export of advanced AI chips to China to the sale of weapons. - The ongoing restrictions have spurred China to accelerate its own domestic semiconductor development, a point highlighted by Nvidia's CEO Jensen Huang, who has expressed concerns that U.S. companies could lose their leadership position in the Chinese market. China is home to 50% of the world's AI researchers, and the export controls have provided an incentive for local talent and government support to grow. - The Bureau of Industry and Security (BIS) has been central to implementing these controls, progressively adding Chinese technology companies to its "Entity List" and expanding restrictions to cover not just chips but also semiconductor manufacturing equipment.