The Xeon E5520 2.26 GHz quad core processor from Dell is designed to enhance the performance and the speed of your system. This processor features 5.86 GT/s bus speed with 45 nm manufacturing technology. An integrated 8 MB of L3 cache gives the processor core faster access to larger amounts of the data used most often. It supports enhanced Speedstep technology that allows tradeoffs to be made between performance and power consumption. Packed with more features, the Xeon E5520 processor is the ideal choice for virtually all of your data demanding or standard enterprise infrastructure applications.