Lenovo ThinkPad W530 24384KU 15.6" LED Notebook - Intel - Core i7 i7-3630QM 2.4GHz In the Box - Lenovo ThinkPad W530, 9-cell Li-on Battery Pack (up to 12.8 hours), AC Adapter, Preinstalled Software - Windows 7 Professional 64 Edition is preinstalled through downgrade rights with Microsoft Windows 8 Pro 64-bit Intel Core i7-3630QM 2.4GHz Quad-Core Processor with Turbo Boost Technology 2.0 up to 3.4GHz, 6MB Smart Cache 3 Year Warranty 8GB PC3-12800 1600MHz DDR3 RAM 500GB 7200RPM Hard Drive