Sony VAIO VGN-NR498E/W 15.4-inch Laptop (2.0 GHz Intel Core 2 Duo T5750 processor, 3 GB RAM, 250 GB Hard Drive, Vista Premium) Intel Core 2 Duo T5750 Processor (2.0GHz) Genuine Microsoft Windows Vista Home Premium with SP1 15.4-Inch widescreen LCD with XBRITE-ECO technology 3GB of pre-installed RAM & a roomy 250GB hard drive. Estimated Battery Life: 2.0-5.0 hours Standard Capacity Battery.