Dell XPS X8700-1244BLK 4th Gen Intel CoreTM i7-4770 processor Features an 8MB cache and 3.4GHz processor speed with Turbo Boost up to 3.9GHz. 8GB DDR3 memory For multitasking power, expandable to 16GB Multiformat DVDRW/CD-RW drive Create custom DVDs and CDs 1TB Serial ATA hard drive (7200 rpm) Offers spacious storage and fast read/write times Microsoft Windows 8.1 64-bit operating system preinstalled