Toshiba Satellite S55-B5266 15.6-Inch Laptop Intel Core i7-4510U Processor (4M Cache, up to 3.1 GHz) with Intel Turbo Boost Technology 2.0 8 GB DIMM RAM 1 TB 5400 rpm Hard Drive 15.6-Inch Screen, AMD Radeon R7 M260 with hybrid graphics Windows 8.1; DVDRW Drive Not Included