Beleaguered chip maker AMD has been roughed up by larger rival Intel Corp. this year as AMD faces delays in product launches and heavy costs related to its $5.6 billion purchase of graphics chip maker ATI Technologies. AMD began an eventful second quarter by announcing it would cut 10 percent of its global work force, or about 1,600 employees, by September. Shortly thereafter, the company announced the departure of Chief Technology Officer Phil Hester. However, AMD offered investors reason for hope in early June when it debuted a new chip platform for laptops. The offering was seen as an overhaul of the company's mobile chip lineup which could help fuel a recovery at the Sunnyvale, Calif.-based company.