Intel Chief Executive Officer Paul Otellini will retire in May after almost four decades at the chipmaker, in a priod where the company tries to adapt its dominance in computing into the mobile market.

"Paul Otellini has been a very strong leader, only the fifth CEO in the company's great 45-year history, and one who has managed the company through challenging times and market transitions," said Andy Bryant, chairman of the board. "The board is grateful for his innumerable contributions to the company and his distinguished tenure as CEO over the last eight years."

"I've been privileged to lead one of the world's greatest companies," Otellini said. "After almost four decades with the company and eight years as CEO, it's time to move on and transfer Intel's helm to a new generation of leadership. I look forward to working with Andy, the board and the management team during the six-month transition period, and to being available as an advisor to management after retiring as CEO."

Intel's board of directors will conduct the process to choose Otellini's successor and will consider internal and external candidates for the job.

During Otellini's leadership from the second quarter of 2005 through the third quarter of 2012, Intel achieved record revenue and net income. "During this period, annual revenue grew from $38.8 billion to $54 billion, while annual earnings-per-share grew from $1.40 to $2.39," Intel said.

However, Intel's future growth is uncertain, as the computing market tilts toward smartphones and tablet computers, undercutting the demand for the desktop and laptop machines that have been the foundation of Intel's success for the past 30 years.

Intel's's board has also approved the promotion of three senior leaders to the position of executive vice president: Renee James, head of Intel's software business; Brian Krzanich, chief operating officer and head of worldwide manufacturing; and Stacy Smith, chief financial officer and director of corporate strategy.