UPDATE 4-Intel bucks chip industry woes; powered by PCs, iPhones

(Adds CEO quotes about modems)

Oct 25 (Reuters) - Intel Corp beat analysts' estimates for quarterly profit and revenue on Thursday, driven by its high-margin data center business and strong demand for its PC chips, sending its shares up as much as 6.0 percent in extended trading.

The company's 39 percent rise in profits and better-than-expected fourth-quarter forecast should come as a relief for investors after three days of grim news from other major chipmakers that have shaken stock markets globally.

Amazon Inc and Alphabet Inc also reported disappointing earnings on Thursday, sending technology stocks down in after hours trading.

Intel executives do not see any near-term weakness from the trade tensions or Chinese economy, despite the fact that large data center customers like Baidu Inc and consumer PC factories are located there.

Texas Instruments Inc, STMicroelectronics NV and SK Hynix have all warned of slowing demand for the remainder of the year.

Intel bucked the trend thanks to strong sales of chips for PCs, the second quarter in the row the company benefited from the sector after years of stagnation in that business, and increasing sales of iPhone modem chips.

Interim Chief Executive Bob Swan told Reuters the PC chip strength came from computer purchases by business customers in developed economies as well as gamers building high-end machines. Many businesses are upgrading their PCs because Microsoft Corp has said it will end support for some older versions of Windows in early 2020.

Intel's results also allayed concerns that a trade conflict between the U.S. and China or a slowdown in the Chinese economy could drag down the global chip business.

"We'll be working with our domestic Chinese customers and our global 1/8PC manufacturers 3/8 to adjust and adapt the supply chain to deal with constraints," Swan told Reuters.

Also boosting Intel sales was its business for modems, which connect smart phones to wireless data networks which was up 131 percent in the quarter. The gain resulted from Intel completely replacing rival modem supplier Qualcomm Inc in the most recent models of Apple Inc's.

But Swan said the modem sales are also pressuring Intel's margins and contributed to the firm lowering its fourth quarter operating margin outlook to 34.5 percent.

"That being said, what the modems and memory do for the company is allow us to play in a much larger market," he said.

Intel forecast current-quarter revenue of $19 billion and adjusted earnings of $1.22 per share. Analysts on average were expecting revenue of $18.40 billion and a profit of $1.09 per share, according to Refinitiv data.

Intel has been increasingly catering to a booming data center market as revenue from PCs has flattened since 2011.

Revenue from its data center business rose 25.9 percent to $6.14 billion in the quarter, while analysts were expecting revenue of $5.89 billion, according to financial and data analytics firm FactSet.

Rival Advanced Micro Devices Inc, which has been gaining ground with its new EPYC chips for servers, reported a better-than-expected quarterly profit on Wednesday but forecast fourth-quarter revenue below estimates due to falling demand for its graphics chips from cryptocurrency miners.

Revenue in Intel's client computing business, which caters to PC makers and is still the biggest contributor to sales, also rose 15.5 percent to $10.23 billion, beating FactSet estimates of $9.33 billion.

Intel's PC sales have trended positive in recent quarters, lifted by stronger demand. Many businesses have started the process of buying new PCs because Microsoft Corp has said it will end support for Windows 7 in early 2020.

"There's been really strong demand for both the consumer and enterprise for PCs which helped. They also did a great job managing through some supply disruptions," said Elazar Advisors analyst Chaim Siegel.

Intel recorded a $290 million charge a result of Micron Technology Inc's decision to buy out Intel's portion of a memory fabrication plant in Utah where the two had partnered to build advanced memory chips, a move analyst Patrick Moorhead of Moor Insights & Strategy called "negotiation tactics." He expects the two to find a way to work together.

Intel's Swan told Reuters that Intel has retained its rights to the technology and intends to eventually build its own factories to produce the chips.

"Despite their announcement, we will still have access to supply from the fab for the next 18 to 24 months, and that will give us time to explore the alternatives we have to produce the product," Swan said.

On an conference call with investors, Swan said he expected capital expenditures on memory chips to be "a little bit lower" in 2019 "despite building self sufficiency" after Micron's move.

Net income rose to $6.40 billion, or $1.38 per share, in the third quarter ended Sept. 29 from $4.52 billion, or 94 cents per share, a year earlier. https://bit.ly/2Q193je

Excluding items, the company earned $1.40 per share.

Net revenue rose 18.7 percent to $19.16 billion.

Analysts on average were expecting adjusted earnings of $1.15 per share and revenue of $18.11 billion. (Reporting by Sonam Rai in Bengaluru and and Stephen Nellis in San Francisco; Additional reporting by Akanksha Rana; editing by Anil D'Silva and Clive McKeef)