Lenovo Z51 - 80K600Q9U Laptop Computer S - Black: Web Special - 5th Generation Intel Core i7-5500U (2.40GHz 1600MHz 4MB) Processor - 5th Generation Intel Core i7-5500U (2.40GHz 1600MHz 4MB) Operating System - Windows 10 Home 64 Memory - 8.0GB PC3L-12800 DDR3L 1600 MHz Graphics Card - AMD Radeon R9 M375 2GB Hard Drive - 1TB 5400 RPM