iBUYPOWER Gamer Extreme KO-969 Desktop PC (Intel Core 2 Duo E8400 Processor, 4 GB RAM, 500 GB Hard Drive, Nvidia 9800GT 512MB, DVD Burner/Reader, Vista Premium) (Discontinued by Manufacturer) Powered by Intel Core 2 Duo E8400 Processor 4 GB RAM; 500 GB hard drive Nvidia 9800GT 512MB graphic card Microsoft Windows Vista Premium operating system