HP Pavilion Touchsmart 15-b153nr 15.6-inch Sleekbook AMD 1.6GHz 4555M Processor, 6GB Ram, 750GB Hard Drive Windows 8 1.6GHz up to 2.4GHz AMD Quad-Core A8-4555M Accelerated Processor with 4MB L2 Cache, Windows 8 (64-bit) 6GB DDR3 SDRAM (2 DIMM), Maximum supported = 8GB, Multi-Format Digital Media Card Reader for Secure Digital cards & Multimedia cards 15.6-inch diagonal HD BrightView LED-backlit touchscreen display (1366x768), AMD Radeon HD 7600G Discrete-Class graphics and up to 3057MB total graphics memory 750GB 5400RPM hard drive with HP ProtectSmart Hard Drive Protection, Altec Lansing dual speakers with Dolby Advanced Audio HP TrueVision HD Webcam with integrated dual array digital microphone , 2 SuperSpeed USB 3.0,1 Universal Serial Bus (USB) 2.0, 1 HDMI