White House U-turn on Nvidia H200 AI accelerator exports down to Huawei's powerful new Ascend chips, report claims β U.S. committed to 'dominance of the American tech stack' Latest from Tom's Hardware By:sayem.ahmed@futurenet.com (Sayem Ahmed) 10 December 2025 at 17:09 According to a new report, the Trump Administration's U-turn on allowing exports of the Nvidia H200 AI accelerator chip is down to competition from China's native Huawei, which offers comparable power.