The investigation follows a US decision to further restrict sales to chip equipment makers in China.

The California-based technology giant has been one of the biggest beneficiaries of the AI boom.

The two tech firms were among the first to see the commercial potential of AI.

The artificial intelligence chip giant briefly took the top spot from the software company this week.

Jensen Huang is at the forefront of an AI boom, which coincides with Nvidia's rise as a leading chip firm.

Nvidia has been marked out as a winner from a wave of investments in artificial intelligence.

The firm has benefited from the AI boom, making it the third-most valuable company in the US.

Booming business at Nvidia sees investors bet the AI revolution will live up to its "hype".