The first of the new MacBook Pros unveiled on Tuesday are in the Macworld Lab, and the results show that the internal updates in new pro laptops help to increase performance in nearly every application.The new line of MacBook Pros consists of five standard configurations, three with 13-inch displays and two 15-inch models. All use Intel's fourth generation Core processors, dual-core Haswells in the smaller models and quad-core Crystalwell processors in the larger laptops. All five of the portables take advantage of Intel's new Iris integrated graphics. Only the $2599 high-end 15-inch MacBook Pro adds discrete graphics, in t
