Nvidia Corp's (NVDA.O) quarterly profit and revenue topped market estimates and the chipmaker also gave a strong revenue forecast for the current quarter, powered by demand for its graphics chips used in gaming and data centers.

The company's shares were up 2.5 per cent in extended trading on Thursday. Their roughly 92 per cent surge this year has made them the third-best performing stock on the Philadelphia Semiconductor index.

The strength in Nvidia's data center in the third quarter comes after a disappointing showing in the previous quarter and on the heels of rival Intel Corp (INTC.O) showcasing its strength in the same market two weeks back.

Nvidia gets the bulk of its revenue from gaming, for which it is best known. But its growth hinges on new areas, especially its data center business, where its customers include Amazon.com Inc's (AMZN.O) Amazon Web Services and Microsoft Corp's (MSFT.O) Azure.

Revenue from the business, Nvidia's second-biggest revenue contributor, more than doubled to US$501 million in the quarter and easily beat analysts' estimate of US$474.2 million, according to Thomson Reuters I/B/E/S.

"We've been steadfast with the excitement of accelerated computing for data centers. And I think this is just the beginning of it all," Chief Executive Jensen Huang said on an analyst call.

Nvidia's gaming revenue increased 25.5 per cent to US$1.56 billion, accounting for nearly 60 per cent of total revenue. That also beat analysts' average estimate of US$1.31 billion.

"Gaming is one of the fastest-growing entertainment industries and we're well-positioned for the holidays," Huang said.

Huang also played down a recent announcement by bitter rivals Advanced Micro Devices Inc (AMD.O) and Intel to partner to take on Nvidia in graphic chips for PCs.

AUTOMOTIVE NOT YET RELEVANT

Nvidia has also expanded its reach in automobiles, from making chips for infotainment systems, to unveiling its first chip for self-driving cars in October. Another source of demand has been from increasing interest in cryptocurrency mining.

But Huang sought to temper expectations of a drive from that demand, echoing his own remarks and those from rival Advanced Micro Devices Inc (AMD.O) two weeks back.

"The longer-term way to think about that is crypto is small for us but not zero. And I believe that crypto will be around for sometime, kind of like today," Huang said.

Revenue from Nvidia's automotive business rose 13.3 per cent to US$144 million, falling shy of estimates of US$149.8 million.

But analysts were not worried.

"While automotive is an important long-term growth driver for NVDA, investors' near-term focus is on the growth metrics of gaming and data center end-markets," Loop Capital Markets analyst Betsy Van Hees said in an e-mail.

Nvidia's total revenue rose 31.5 per cent to US$2.64 billion, and profit surged 54.6 per cent to US$838 million, or US$1.33 per share, in the quarter ended Oct. 29.

Analysts' on average were expecting a profit of 94 cents per share on revenue of US$2.36 billion.

The company forecast fourth-quarter revenue of US$2.65 billion, plus or minus two per cent, which translates to a range of US$2.60 billion to US$2.70 billion. Analysts were expecting US$2.44 billion.