Top chipmaker Intel posted second-quarter revenue above expectations, defying investors' concerns about slowing personal computer sales.

Intel's revenue in the June quarter was $13.1 billion, up 22 percent over the year-ago period and above the $12.83 billion expected by analysts, according to Thomson Reuters I/B/E/S.

Non-GAAP net income in the quarter was $3.2 billion, up 10 percent. Non-GAAP earnings per share were 59 cents.

Shares of Intel rose 1.65 percent to $23.37 in extended trade after closing down 0.3 percent.

(Reporting by Noel Randewich; Editing by Richard Chang)