The Xeon X3353 2.66GHz Quad Core Processor from Dell is designed to enhance the performance and the speed of your system. This processor features 1333MHz bus speed, and an integrated 12MB of L2 cache giving the processor core faster access to larger amounts of the data used most often. Packed with more features, the Xeon X3353 2.66GHz Quad Core Processor is the ideal choice for virtually all of your data demanding or standard enterprise infrastructure applications.