Display Diagonal screen size 21.5 inch Natural resolution (max) 1920 x 1080 pixels Drives Primary hard drive 500 GB Optical drive DVD-RW General Dimensions (H x W x D) 451 x 528 x 188.5 mm Weight 9.3 kg Graphics Graphics hardware AMD Radeon HD 6750M Amt of video RAM 512 MB Memory Amt of RAM 4GB RAM type DDR3-1333 Processor Processor Intel Core i5 Processor speed 2.5 GHz Software Operating system Mac OS X
