Lenovo ThinkPad Yoga 15 20DQ001KUS 2in1 Laptop 15.6" - Intel Core i5-5200U (2.20 GHz) 8GB Memory 180GB SSD NVIDIA Geforce 840M Windows 8.1 Pro Intel Core i5-5200U 2.2 GHz 8 GB DDR3L SDRAM 180 GB Solid-State Drive 15-Inch Screen, Nvidia GeForce 840M Windows 8.1 Professional