Apple’s new MacBooks had gamers singing their praises when CEO Steve Jobs unveiled them last month. The company dropped integrated Intel graphics chipsets in favor of Nvidia’s new GeForce 9400M, which is also integrated but which promises more than a basic step up in 3-D performance. “The new graphics chips are going to be at least twice as fast as the older MacBooks, and that should put them in the range to support more games,” said Glenda Adams, who heads up internal development at Aspyr Media.