Apple confirmed Tuesday that its entire MacBook Pro laptop lineup had transitioned to Intel Core 2 Duo processors, completing an upgrade the company said doubled memory capacity and boosted performance by up to 39 percent.

Two 15-inch models, priced at $1,999 and $2,499, went on sale immediately. A new 17-inch version, carrying a $2,799 price tag, was set to reach stores the following week.

Apple Vice President Philip Schiller called the updated machines a combination of strong performance and a slim, lightweight form factor. The company noted its laptop sales were expanding at roughly twice the rate of the broader notebook market.

The announcement followed a strong quarterly earnings report from the Cupertino, California firm, where rising iPod and Macintosh sales drove significant profit growth.

Historical summary. TurkishPress restated this wire report, first published in October 2006, in its own words.