Sony VAIO VGN-AW150Y/H 18.4-Inch Laptop (2.53 GHz Intel Core 2 Duo T9400 Processor, 4 GB RAM, 640 GB Hard Drive, Blu-ray Drive, Vista Ultimate) Gray Intel Core 2 Duo T9400 (2.53GHz), 6MB L2 cache Genuine Microsoft Windows Vista Ultimate 64bit 18.4-Inch widescreen display with XBRITE-FullHD technology Blu-ray Disc optical drive and 4GB of RAM 640GB (320GBx2) Serial ATA HDD and built-in CF media slot