H100和A100都有限制，V100没有限制。Nvidia专为中国定制了H800和A800：

SAN FRANCISCO, March 21 (Reuters) - Nvidia Corp (NVDA.O), the U.S. semiconductor designer that dominates the market for artificial intelligence (AI) chips, said it has modified its flagship product into a version that is legal to export to China.

U.S. regulators last year put into place rules that stopped Nvidia from selling its two most advanced chips, the A100 and newer H100, to Chinese customers citing national security concerns. Such chips are crucial to developing generative AI technologies like OpenAI's ChatGPT and similar products.
 

Reuters in November reported that Nvidia had designed a chip called the A800 that reduced some capabilities of the A100 to make the A800 legal for export to China.

On Tuesday, the company said it has similarly developed a China-export version of its H100 chip. The new chip, called the H800, is being used by the cloud computing units of Chinese technology firms such as Alibaba Group Holding Ltd (9988.HK), Baidu Inc (9888.HK) and Tencent Holdings Ltd (0700.HK), a company spokesperson said.