Lenovo ThinkPad R51, 2 GHz, 15", 1400 x 1050 pixels, 1 GB, DDR-SDRAM, 80 GB Lenovo ThinkPad R51. Processor frequency: 2 GHz. Display diagonal: 15", Display resolution: 1400 x 1050 pixels. Internal memory: 1 GB, Internal memory type: DDR-SDRAM. Total storage capacity: 80 GB. Discrete graphics card model: AMD Mobility Radeon 9000 IGP. Weight: 6.17 lbs (2.8 kg)