Intel® Pentium® Intel Pentium G Hard Drive HDD HP Pro 3500, 3 GHz, Intel Pentium G, 4 GB, 500 GB, DVD Super Multi, Windows 7 Professional HP Pro 3500. Processor frequency: 3 GHz, Processor family: Intel Pentium G, Processor model: G860. Internal memory: 4 GB, Internal memory type: DDR3-SDRAM, Memory clock speed: 1333 MHz. Total storage capacity: 500 GB, Storage media: HDD, Optical drive type: DVD Super Multi. On-board graphics card model: Intel® HD Graphics. Operating system installed: Windows 7 Professional, Operating system architecture: 64-bit. Power supply: 300 W. Chassis type: Micro Tower. Product type: PC