Sales of AI chips by Nvidia rose strongly in its latest quarter, though the growth was less intense than in previous periods, raising questions about the sustainability of demand.

The company's data centre division reported revenue of 41.1 billion USD between May and July, a 56% rise from last year but slightly below analyst forecasts.

Overall revenue reached 46.7 billion USD, while profit climbed to 26.4 billion USD, both higher than expected.

Nvidia forecasts sales of$54 billion USD for the current quarter.

CEO Jensen Huang said the company remains at the 'beginning of the buildout', with trillions expected to be spent on AI by the decade's end.

However, investors pushed shares down 3% in extended trading, reflecting concerns that rapid growth is becoming harder to maintain as annual sales expand.

Nvidia's performance was also affected by earlier restrictions on chip sales to China, although the removal of limits in exchange for a sales levy is expected to support future revenue.

Analysts noted that while AI continues to fuel stock market optimism, the pace of growth is slowing compared with the company's earlier surge.