Lenovo T520, ThinkPad. Processor clock speed: 2.3 GHz, Processor family: Intel Core i5, Processor model: i5-2410M. Internal memory: 4 GB, Memory clock speed: 1333 MHz, Memory slots: 2x SO-DIMM. Total storage capacity: 500 GB, Storage media: HDD, Hard drive capacity: 500 GB. Display diagonal: 396.2 mm (15.6 "), Display resolution: 1600 x 900 pixels, Aspect ratio: 16:9. On-board graphics adapter model: Intel HD Graphics 3000, Discrete graphics adapter model: NVIDIA NVS 4200M, Discrete graphics adapter memory: 1024 MB