Nvidia's share of China's market for artificial intelligence chips has fallen by roughly a third, and Huawei has picked up most of what the American supplier dropped, Digitimes reports.

The figure is blunt. A company that once treated China as a reliable, high-volume buyer now finds a meaningful slice of that demand served by a domestic rival. Digitimes did not publish absolute unit volumes or revenue splits alongside the headline, so the size of the pie remains less certain than the direction of travel. The direction, however, is not in doubt.

Why does this matter for Nvidia?

Washington's export controls have reshaped the market since 2022. Nvidia cannot legally sell its flagship data-center GPUs in China, and the compliant variants it developed for that market occupy an awkward middle ground: weaker than the parts its largest customers want, stronger than what regulators prefer to permit. Beijing, for its part, has spent years nudging large buyers toward domestic silicon.

The result is a market where Nvidia's available product no longer matches the demand it once captured. A share loss of one third in this environment is less a commercial defeat than a policy outcome. It still shows up in the revenue line, which is the part Nvidia's investors read first.

Huawei sits on the other side of the ledger. Its Ascend accelerator family has become the default domestic alternative for Chinese cloud providers and AI labs that cannot obtain top-tier Nvidia hardware. Huawei does not publish comparable shipment figures, and Digitimes attributes the gain without quantifying it. The gain itself, though consistent with procurement directives from Beijing, marks the first clear market-share evidence at this scale.

What does the shift mean for the supply chain?

China's AI buildout continues regardless of who supplies the accelerators. Huawei's gains imply rising demand for the upstream pieces of its stack: domestic advanced packaging, High Bandwidth Memory alternatives, and the foundry capacity behind Ascend production. That capacity remains constrained, and Digitimes offers no timeline for expansion.

For Nvidia, the lost share is unlikely to return quickly. Export rules have tightened rather than loosened across successive administrations, and each compliant SKU Nvidia designs has drawn fresh regulatory scrutiny. The company has redirected its strongest products to customers elsewhere, and its data-center revenue has not visibly suffered for it. China has become a market Nvidia defends with leftovers.

For Huawei, the share gain brings its own burden. Selling more accelerators means scaling a production chain that lacks easy access to leading-edge lithography equipment. How far Huawei can push Ascend output, and at what yield, will decide whether this share shift becomes a durable realignment or a ceiling-bound niche.

The competitive picture now hinges on two variables Digitimes leaves open: Huawei's actual shipment volumes, and Washington's next move on export rules. Whichever moves first will set the price of the second.

Nathan Brooks is a senior editor at Chip Dispatch.