HP Compaq Presario CQ5112NL Desktop PC, 2.5 GHz, AMD Athlon X2, 7550, 3 GB, 320 GB, Windows Vista Home Premium HP Compaq Presario CQ5112NL Desktop PC. Processor frequency: 2.5 GHz, Processor family: AMD Athlon X2, Processor model: 7550. Internal memory: 3 GB, Internal memory type: DDR2-SDRAM. Total storage capacity: 320 GB, Card reader integrated. Discrete graphics card model: NVIDIA GeForce 9100. Operating system installed: Windows Vista Home Premium. Chassis type: Micro Tower. Product type: PC. Weight: 9.53 kg