Lenovo Thinkpad X1 Carbon Ultrabook - 3444BDU - Core i5 3427U / Windows 7 Professional 64-bit - 8 GB RAM - 256 GB SSD - 14" wide 1600 x 900 / HD+ - Intel HD Graphics 4000 - 3 Year Warranty Processor: Intel Core i5-3427U Dual-Core 1.80GHz - Hyper-Threading Technology, integrated memory controller, Intel Turbo Boost Technology 2.0 RAM: 8GB 1333MHz DDR3 SDRAM Hard Drive: 256 GB SSD Serial ATA-300 Graphics: Intel HD Graphics 4000 Operating System: Microsoft Windows 7 Professional 64-bit in Microsoft Windows 8 Professional 64-bit