Legacy Intel® Core™ Processor Intel Core i5-xxx DELL OptiPlex 980 SF, 3.2 GHz, Intel® Core™ i5, 4 GB, 500 GB, DVD-RW, Windows 7 Professional DELL OptiPlex 980 SF. Processor frequency: 3.2 GHz, Processor family: Intel® Core™ i5, Processor model: i5-650. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 500 GB, Optical drive type: DVD-RW. On-board graphics card model: Intel® HD Graphics, Discrete graphics card model: AMD Radeon HD 3450. Operating system installed: Windows 7 Professional. Power supply: 235 W. Chassis type: SFF. Product type: PC. Product color: Black