Legacy Intel® Core™ Processor Intel Core i5-xxx TERRA PC-Business 6000 Green Line, 3.33 GHz, Intel® Core™ i5, 4 GB, 500 GB, DVD-RW, Windows 7 Professional TERRA PC-Business 6000 Green Line. Processor frequency: 3.33 GHz, Processor family: Intel® Core™ i5, Processor model: i5-660. 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. Operating system installed: Windows 7 Professional, Operating system architecture: 64-bit. Power supply: 350 W. Chassis type: Midi Tower. Product type: PC. Product colour: Black, Grey