HP Envy 15 15.6-Inch Laptop with Windows 7 Professional (Intel Quad Core i7-4720HQ 6MB Cache up to 3.6GHz Turbo Frequency / 8GB DDR3 Memory / 1TB Hard Drive/ Beats Audio/ Fingerprint Reader/ Metallic Silver Lid) Premium-built HP Flagship Laptop Envy Series, Equipped with Quad-Core i7 Processor and Loaded with Genuine Windows 7 Professional 64 English; Quad-Core Intel i7-4720HQ 2.6GHz and 3.6GHz Turbo Frequency, 6MB Cache, 8GB DDR3 System Memory (2 Dimms), 1TB 5400 rpm Hard Drive; Intel(R) HD Graphics 4600, 15.6-inch diagonal HD BrightView WLED-backlit Display (1366x768); 802.11b/g/n WLAN, HP TrueVision HD Webcam with Dual Digital Microphone, 4 USB 3.0, Beats Audio Eligible for future Windows 10 upgrade when available.