You are buying one;.
Intel Core Q9650 Core 2 Quad SLB8W 3.00 GHz Desktop Processor
Intel Core 2 Quad Q9550 CPU 2.83 GHz 12M/1333 SLB8V/SLAWQ LGA 775 Processor
Intel Core 2 Quad Q9550 SLAN4 SLAWQ SLB8V 2.83GHz LGA775 CPU Desktop Processor
Intel Core 2 Quad Q9550 CPU 4-Core 2.83GHz/12M/1333 SLB8V LGA775 Processor
Intel Core 2 Quad Q9550 2.83 GHz 12M 1333 Quad-Core Processor LGA775 CPU /
Intel Core 2 Quad Q9550 2.83 GHz 12 M 1333 MHz Quad-Core PC Processor Socket 775