The world's most valuable company, tech giant Nvidia, has reported a record revenue of $US81.6 billion ($114.17 billion) in its first-quarter results, up 85 per cent on the same time a year ago.However, its second-quarter sales forecast has left investors unimpressed, despite exceeding Wall Street expectations by billions.It forecasts revenue of $US91 billion in June, compared with estimates of $US86.84 billion.The company is headquartered in California and has a market cap of $US5.4 trillion."The buildout of AI factories — the largest infrastructure expansion in human history — is accelerating at extraordinary speed," said Nvidia's CEO, Jensen Huang, in a statement."Agentic AI has arrived, doing productive work, generating real value, and scaling rapidly across companies and industries."Jensen Huang says AI factories are "the largest infrastructure expansion in human history". (Reuters: Mike Blake)The results are driven by the company's AI chips, which dominate data centres across the globe.Data centre revenue hit a record $US75.2 billion, up 92 per cent from a year ago.Experts say the reaction from investors has been 'tepid' so far"A typical beat from the company, with the outlook strong amid a relentless AI build-out," said senior financial analyst Kyle Rodda at capital.com.Market analyst Kyle Rodda says investors have become used to Nvidia's strong results. (ABC News: The Business)"It was a garden variety beat, a better-than-expected top and bottom line with guidance above the street estimate, and one that was well telegraphed following the very strong results from AI hyperscalers earlier in the earnings season."Nevertheless, Mr Rodda believes investors have become all too used to Nvidia's strong results."So far, Nvidia shares are only a fraction lower off the back of its results, with futures barely moving, adding or subtracting little from Wall Street's overnight lead for Asia," he said.In after-hours trading the stock eased, up +1.1 per cent to $US221.05."Technically, we think Nvidia completed a fifth-wave advance (Elliott Wave) at last week's $US236.54 high and it should see a pullback toward the $US200 support zone," said IG market analyst Tony Sycamore.IG Australia markets analyst Tony Sycamore says investors wanted "fireworks" in the results. (ABC News: Daniel Irvine)That is despite the company confirming it would increase its quarterly cash dividend to 25 cents per share, up from 1 cent, as well as announcing $US80 billion in stock repurchases.Mr Sycamore said it could be the lull in Nvidia's new market."The lack of any China sales in the outlook and guidance that was only modestly ahead of expectations left some investors wanting a bit more fireworks," he said.Trade with China has stalledEarlier this year, Nvidia received conditional approval to sell one of its powerful AI chips, the H200, to China.Experts believe investors have become all too used to Nvidia's strong results.