Product Features�Redesigned MacBook with thin, strong aluminum unibody frame and 15-inch LED-backlit glass display �New glass trackpad with 40 percent more tracking area and supports more Multi-Touch gestures �2.53 GHz Intel Core 2 Duo processor, 320 GB hard drive, 4 GB RAM (max), DVD/CD SuperDrive �Dual NVIDIA graphics (integraed and discrete); Draft-N Wi-Fi; Bluetooth 2.1; Gigabit Ethernet; Mini DisplayPort video output �Preloaded with Mac OS X 10.5 Leopard operating system and iLife '08 suite of applicationsProcessor, Memory, and Motherboard �Hardware Platform: Mac �Processor: 2.53 GHz Intel Core Duo �System Bus Speed: 1066 �Number of Processors: 2 �RAM: 4000 MB �RAM Type: DDR2 SDRAM Hard Drive �Size: 320 GB