HP ENVY 15-k251na 15.6 comes with Intel Core i7-5500U, Dual-core - 2.4 GHz - 4 MB cache processor, Windows 8.1 (64 bit) Free Windows 10 download Operating System, The Laptop has 8 GB DDR3L RAM and intrnal storage 1 TB HDD, 5400 rpm, HP ENVY 15-k251na 15.6 also has Sound Beats Audio,Integrated stereo speakers,Integrated HP TrueVision HD Webcam,Microphon, 26.7 x 384.5 x 260.2 mm (H x W x D) and 2.34Kg weight, The laptop is Shared graphics and Screen Size 15.6 inches, The Laptop also has NVIDIA GeForce GTX 850M (4 GB DDR3) 1920 x 1080 HD and HP SimplePass Fingerprint Reader - Kensington security lock slot 4-cell Li-polymer, Up to 4.45 hours, Gigabit Ethernet (10/100/1000), AC power adapter, USB 3.0 x 3, Micro HDMI x 1 by HP.