Intel AT80580PJ0676M Core 2 Quad Q9400 2.66GHz Processor

With four execution cores, the Intel Core 2 Quad processor blows through processor-intensive tasks in demanding multitasking environments and makes the most of highly threaded applications. Whether you're creating multimedia, annihilating your gaming enemies, or running compute-intensive applications at one time, new quad-core processing will change the way you do everything. Pioneer the new world of quad-core and unleash the power of multithreading.