Lenovo Laptop Intel Core 2 Duo T6600 (2.20GHz) 3GB Memory 320GB HDD Intel GMA 4500MHD 15.6" Windows XP Professional preinstalled with Windows 7 Professional Upgrade Option G550(2958-A4U) - Newegg.com
Specs Lenovo ThinkPad G550 39.6 cm (15.6") Intel® Pentium® Dual-Core T4500 1 GB DDR3-SDRAM 320 GB Intel® GMA 4500M Windows 7 Home Premium Black Laptops (NTDBMGE)
Laptop Lenovo G550 (2958J4S): Procesador Intel Celeron T3000 (1.8 GHz), Memoria de 2GB DDR3, Disco Duro de 250GB, Pantalla de 15.6", DVD+R/RW DL, Red Inalámbrica, Windows 7 Home Basic