![Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics](https://m.media-amazon.com/images/I/71QxHGxJtLL._CR412,0,1060,1060_UX256.jpg)
Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics
![Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics](https://images-na.ssl-images-amazon.com/images/I/41qwZb-aTeL._AC_UL900_SR615,900_.jpg)
Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : 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 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/51jYhNuNTNL._AC_.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 Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics](https://m.media-amazon.com/images/I/51bVxuWhRZL._SR600%2C315_PIWhiteStrip%2CBottomLeft%2C0%2C35_PIStarRatingFOURANDHALF%2CBottomLeft%2C360%2C-6_SR600%2C315_ZA110%2C445%2C290%2C400%2C400%2CAmazonEmberBold%2C12%2C4%2C0%2C0%2C5_SCLZZZZZZZ_FMpng_BG255%2C255%2C255.jpg)
Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics
![Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics](https://m.media-amazon.com/images/I/51CiV9l89cL._AC_.jpg)
Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics
![Amazon.com: Dell OptiPlex 960, Intel Core 2 Quad Q9400 2.66GHz, 8GB DDR3, 1TB HD, Radeon 5450 Graphics, Windows 10 (Renewed) : Electronics Amazon.com: Dell OptiPlex 960, Intel Core 2 Quad Q9400 2.66GHz, 8GB DDR3, 1TB HD, Radeon 5450 Graphics, Windows 10 (Renewed) : Electronics](https://m.media-amazon.com/images/I/41Dv5oDIsjL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Dell OptiPlex 960, Intel Core 2 Quad Q9400 2.66GHz, 8GB DDR3, 1TB HD, Radeon 5450 Graphics, Windows 10 (Renewed) : Electronics
![Intel Core 2 Quad Q9200 vs Intel Core 2 Quad Q9400 Benchmarks, Specs, Performance Comparison and Differences - GadgetVersus Intel Core 2 Quad Q9200 vs Intel Core 2 Quad Q9400 Benchmarks, Specs, Performance Comparison and Differences - GadgetVersus](https://gadgetversus.com/img/Intel_Core_2_Quad_Q9200.jpg)
Intel Core 2 Quad Q9200 vs Intel Core 2 Quad Q9400 Benchmarks, Specs, Performance Comparison and Differences - GadgetVersus
![Used - Like New: Intel Core2 Quad Q9400 - Core 2 Quad Quad-Core 2.66 GHz LGA 775 95W Processor - BX80580Q9400 - Newegg.com Used - Like New: Intel Core2 Quad Q9400 - Core 2 Quad Quad-Core 2.66 GHz LGA 775 95W Processor - BX80580Q9400 - Newegg.com](https://c1.neweggimages.com/ProductImage/19-115-131-02.jpg)
Used - Like New: Intel Core2 Quad Q9400 - Core 2 Quad Quad-Core 2.66 GHz LGA 775 95W Processor - BX80580Q9400 - Newegg.com
![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._AC_UF894,1000_QL80_.jpg)
Amazon.com: Intel Core 2 Quad Q6600 2.4GHz 2.40GHz 8M/1066 SLACR Socket 775 CPU Processor + : Electronics
![Amazon.com: Intel Core2 Quad Q9400 SLB6B Desktop CPU Processor LGA 775 6M 2.66 GHz 1333 MHz : Electronics Amazon.com: Intel Core2 Quad Q9400 SLB6B Desktop CPU Processor LGA 775 6M 2.66 GHz 1333 MHz : Electronics](https://m.media-amazon.com/images/I/51cRxj89y-L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Intel Core2 Quad Q9400 SLB6B Desktop CPU Processor LGA 775 6M 2.66 GHz 1333 MHz : Electronics
![Amazon.com: Intel Genuine Core 2 Quad CPU Computer Processor SLB6B 2.66GHZ 1333MHZ 6M Q9400 : Electronics Amazon.com: Intel Genuine Core 2 Quad CPU Computer Processor SLB6B 2.66GHZ 1333MHZ 6M Q9400 : Electronics](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/312yIS4HkFL._AC_UF350,350_QL80_.jpg)
Amazon.com: Intel Genuine Core 2 Quad CPU Computer Processor SLB6B 2.66GHZ 1333MHZ 6M Q9400 : Electronics
![Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics Amazon.com: Intel Core 2 Quad Q9400 Processor 2.66 GHz 1333 MHz 6 MB LGA775 EM64T CPU (BX80580Q9400) : Electronics](https://m.media-amazon.com/images/I/71NJJwZlkAL._CR412,0,1060,1060_UX256.jpg)