Toshiba Satellite P55T 15.6-Inch 4K Touchscreen Laptop / 15.6-Inch Ultra HD 4K Touch Display / Intel Core i7-4710HQ / AMD Radeon R9 M265X 2GB Dedicated Graphics / 12GB / 1TB / Blu-ray drive / Backlit Keyboard / HDMI / WiFi / Webcam / Bluetooth / Windows 8.1 Intel Core i7-4710HQ Processor (6M Cache, up to 3.5 GHz) with Intel Turbo Boost Technology 2.0 15.6 in 4K Ultra HD TruBrite LED-backlit (3840 x 2160), 10-finger multi-touch support; AMD Radeon R9 M265X with 2GB graphics memory, Intel HD Graphics 4600 12 GB DIMM RAM; 1 TB 5400 rpm Hard Drive; BD-RE Blu-ray drive 4 USB 3.0 (1 charge)  HDMI  Headphone output  Microphone input with sleep and music support  LAN (10/100/1000); Backlit keyboard; 4 in 1 card reader (SD/SDHC/SDXC/MMC); DTS Sound, harman/kardon stereo speakers; HD webcam; 802.11ac/a/b/g/n (Miracast enabled); Bluetooth; Windows 8.1, 3.0-hour battery life; Brushed Aluminum Finish in Satin Gold