Dell XPS 15 XPS9550-4444SLV 15.6-Inch 4K Ultra HD Intel Core i7-6700HQ 16GB RAM 512GB SSD 6th Generation Intel Core i7-6700HQ Quad Core (6M Cache, up to 3.5 GHz) 16GB DDR4-2133MHz 512GB PCIe Solid State Drive NVIDIA GeForce GTX 960M with 2GB GDDR5 15.6" 4K Ultra HD (3840 x 2160) Infinity Edge touch