Nvidia says US speeded up new export curbs on AI chips

Chip designer Nvidia said new U.S. export curbs that block the sale of its high-end artificial intelligence chips to China came into effect on Monday as regulators advanced the timeline.
The restrictions were supposed to come into play 30 days from Oct. 17 when the Biden administration unveiled measures to stop countries, including China, Iran and Russia, from receiving advanced AI chips designed by Nvidia and others.