HP 220 CMT, Z. Processor clock speed: 3400 MHz, Processor family: Intel Core i7, Processor model: i7-3770. Internal memory: 8192 MB, Internal memory type: DDR3, Memory slots: 4x DIMM. Hard drive capacity: 1000 GB, Hard drive interface: Serial ATA, Hard drive rotational speed: 7200 RPM. Graphic adapter: HD Graphics 4000, Graphics adapter family: Intel. Optical drive type: DVD Super Multi