2015 Toshiba Satellite S55-B5280 High Performance Laptop, Intel Core i7-5500U(up to 3.0GHz), 15.6-inch HD Display, 12GB DDR3L, 1TB HDD, Windows 8.1 4th Gen 2.0 GHz Intel Core i7-4510U Dual Core Processor (4MB Cache, up to 2.6GHz), Intel HD Graphics 12GB DDR3L 1600MHz memory, 1TB Hard Drive (5400 RPM, Serial ATA), No DVD 15.6-inch TruBrite LED Backlit 1366x768 (HD) Display, HDMI with 4K Ultra HD output capability, Webcam 802.11 AC Wireless(support Gigabit WiFi), Bluetooth 4.0, Media card reader, Windows 8.1 upgrade to Windows 10