X75A Intel Core i5 2.5GHz 17.3" 4GB DDR3 SDRAM 500GB HDD W7P x64 Operating System - Microsoft Windows 7 Professional 64-bit Intel Core i5-3210M 2.50GHz Processor with Turbo Boost Technology up to 3.1GHz 3MB Smart Cache 4GB DDR3 SDRAM Memory 500GB 7200RPM SATA Hard Drive