HP 550, Intel® Core™2 Duo, 1.6 GHz, 39.1 cm (15.4"), 1280 x 800 pixels, 2 GB, 160 GB HP 550. Processor family: Intel® Core™2 Duo, Processor model: T5470, Processor frequency: 1.6 GHz. Display diagonal: 39.1 cm (15.4"), Display resolution: 1280 x 800 pixels. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 160 GB. Discrete graphics card model: Intel® GMA X3100. Operating system installed: Windows Vista Business. Weight: 2.5 kg