![Amazon.com: Intel Core 2 Quad Q9400 Quad-core (4 Core) 2.66 GHz Processor - Socket T LGA-775-6 MB - 1333 MHz Bus Speed - Yes - 45 nm - 95 W - AT80580PJ0676M : Electronics Amazon.com: Intel Core 2 Quad Q9400 Quad-core (4 Core) 2.66 GHz Processor - Socket T LGA-775-6 MB - 1333 MHz Bus Speed - Yes - 45 nm - 95 W - AT80580PJ0676M : Electronics](https://m.media-amazon.com/images/I/41AymUlqNkL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Intel Core 2 Quad Q9400 Quad-core (4 Core) 2.66 GHz Processor - Socket T LGA-775-6 MB - 1333 MHz Bus Speed - Yes - 45 nm - 95 W - AT80580PJ0676M : Electronics
![Amazon.com: Intel Core 2 Quad Q6600 Quad-Core Processor, 2.40 GHz, 8M L2 Cache, LGA 775 : Electronics Amazon.com: Intel Core 2 Quad Q6600 Quad-Core Processor, 2.40 GHz, 8M L2 Cache, LGA 775 : Electronics](https://m.media-amazon.com/images/I/51CJ6OTtJtL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Intel Core 2 Quad Q6600 Quad-Core Processor, 2.40 GHz, 8M L2 Cache, LGA 775 : Electronics
![Amazon.com: Intel Core 2 Quad Q9300 2.5 GHz 6M L2 Cache 1333MHz FSB LGA775 Quad-Core Processor : Electronics Amazon.com: Intel Core 2 Quad Q9300 2.5 GHz 6M L2 Cache 1333MHz FSB LGA775 Quad-Core Processor : Electronics](https://m.media-amazon.com/images/I/51VAEdpP6rL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Intel Core 2 Quad Q9300 2.5 GHz 6M L2 Cache 1333MHz FSB LGA775 Quad-Core Processor : Electronics
![Amazon.com: Intel Core 2 Quad Q6600 2.4GHz 2.40GHz 8M/1066 SLACR Socket 775 CPU Processor + : Electronics Amazon.com: Intel Core 2 Quad Q6600 2.4GHz 2.40GHz 8M/1066 SLACR Socket 775 CPU Processor + : Electronics](https://m.media-amazon.com/images/I/81HQKTOnarL.jpg)