The 13-, 15-, and 17-inch MacBook Pro notebooks now feature state-of-the-art quad-core and dual-core Intel processors for up to 2x faster performance.* New graphics on the 15- and 17-inch models are up to 2x faster than before.* New Thunderbolt I/O connects high-performance peripherals and high-resolution displays, and transfers files at lightning speeds. And now MacBook Pro comes standard with OS X Lion, the latest release of the world's most advanced desktop operating system.