HP ENVY - 15t (4th Gen Intel i7-4510U, 4GB NVIDIA GeForce GTX 850M, Full HD 1080p, 16GB RAM, Backlit keyboard, 48WHr Battery, AC WLAN Wifi) Windows 8.1 64, 4th Generation Intel CoreTM i7-4510U Processor + 4GB NVIDIA GeForce GTX 850M Graphics 15.6-inch diagonal Full HD WLED-backlit Display (1920x1080) - Non-Touch 16GB DDR3L System Memory, 1TB 5400 rpm Hard Drive, Beats Audio, HP Control Zone trackpad with multi-touch gesture support 4-cell 48WHr Lithium-ion Battery(long lasting), SuperMulti DVD burner, HP TrueVision HD Webcam with Dual Digital Microphone Backlit Keyboard with Fingerprint Reader, Intel 802.11 AC WLAN and Bluetooth