Lenovo Essential G555, AMD Athlon, 2,1 GHz, 39,6 cm (15.6"), 1366 x 768 pixels, 2 GB, 320 GB Lenovo Essential G555. Processor family: AMD Athlon, Processor model: M320, Processor frequency: 2,1 GHz. Display diagonal: 39,6 cm (15.6"), Display resolution: 1366 x 768 pixels. Internal memory: 2 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 320 GB, Optical drive type: DVD-RW. Discrete graphics card model: AMD Mobility Radeon HD 4200. Operating system installed: Windows 7 Home Premium. Product colour: Black. Weight: 2,7 kg