... -(E8400) (3.0GHz,6M,1333MHz,775pin,45nm)Core 2 Quad CPU1 Core 2 Quad-(Q8200) (2.33GHz,4M,1333MHz,775pin,45nm)2 ... Core 2 Quad-(Q8300) (2.50GHz,4M,1333MHz,775pin,45nm)3 Core 2 Quad-(Q8400) (2.66GHz,4M,1333MHz ... ) (2.66GHz,6M,1333MHz,775pin,45nm)5 Core 2 Quad-(Q9550) (2.83GHz,12M,1333MHz,775pin,45nm)CORE i3 QUADCORE1 ... cpu,which is one business zone of its . Pentium 4 Processor 520