intel core 2 quad q9400s 2.66ghz 6mb 1333mhz product description : intel core 2 quad processor processor no. : q9400s processor speed : 2.66 ghz bus speed : 1333 mhz l2 cache size : 6 mb package type : lga775 manufacturing tech : 45 nm thermal design power: 65w vid voltage range : 0.85v 1.3625v