The Cupertino, California-based company earned $472m, or 54 cents a share, in profit, for its quarter ended July 1, which compared to $320m, or 37 cents, a year ago.

Revenue rose 24% to $4.37bn from $3.52bn last year. Sales outside the US accounted for 39% of its revenue. Analysts expected Apple to earn 44 cents a share, on average, with about $3.68bn in sales

Apple shipped 1.32 million Macintosh computers and 8.11 million iPods during the quarter, which was 12% and 32% more than last year, respectively. Apple chief executive Steve Jobs noted that more than 75% of the Macs sold during the quarter used Intel processors.

This is the smoothest and most successful transition that any of us have ever experienced, he said of the company’s switch from IBM to Intel processors earlier this year.

Apple shares rose more than 8.5% to $58.80 in after-hours trading on the Nasdaq following the announcement.