:Inspiron 5548: 5th Generation Intel Core i7-5500U Processor (4M Cache up to 3.00 GHz) 15.6in LED Backlit Display AMD Radeon (TM) R7 M270 4GB DDR3 8GB 1600MHZ(4GB x 2) Dual Channel 1600MHz DDR3L 1TB Serial ATA (5400RPM) Hybrid No Optical drive Dell Wireless 1707 802.11bgn + BT Windows 8.1 Single Language 64bit 3Yr Next Business Day Warranty Category :Notebooks: Manufacturer :Dell: Sub Category :Dell Inspiron