Lip-Bu Tan may be one of the most powerful technology executives you've never heard of. As he steps into one of the highest-profile jobs on the planet, CEO of troubled, storied chipmaker Intel, his performance will be on full display.

Together, we will work hard to restore Intel’s position as a world-class products company, establish ourselves as a world-class foundry and delight our customers like never before,” Tan said in a letter to Intel employees on Wednesday.

Shares of Intel Corp. jumped the most in five years after the company named Lip-Bu Tan as its next chief executive officer, entrusting a former board member and semiconductor veteran with one of the toughest jobs in the chip industry.