Lenovo ThinkPad Z60m PM 740 1.73GHz, 1.73 GHz, 15.4", 1280 x 800 pixels, 0.5 GB, 80 GB, Windows XP Home Edition Lenovo ThinkPad Z60m PM 740 1.73GHz. Processor frequency: 1.73 GHz. Display diagonal: 15.4", Display resolution: 1280 x 800 pixels. Internal memory: 0.5 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 80 GB, Optical drive type: DVD-RW. Discrete graphics card model: AMD Mobility Radeon X300. Operating system installed: Windows XP Home Edition. Weight: 6.17 lbs (2.8 kg)