Intel Core 2 Quad Q9505 2.83 GHz Processor - Socket T LGA-775 - Quad-core - 1333 MHz Bus Speed - 1. Introducing the Intel Core 2 Quad processor for desktop PCs, designed to handle massive compute and visualization workloads enabled by powerful multi-core technology. Providing all the bandwidth you need for next-generation highly-threaded applications, the latest four-core Intel Core 2 Quad processors are built on 45nm Intel Core microarchitecture enabling faster, cooler, and quieter desktop PC and workstation experiences.