"The key distinguishing feature of the i5000X core logic set from its predecessors is the two independent processor busses with point-to-point topology in this dual-processor system. In other words, this chipset eliminates the major bottleneck of all previous generation multi-processor systems built on Intel Xeon CPUs that were sitting on the same shared bus. This innovation increased the total theoretical processor bus bandwidth in i5000X based systems to 17GB/s for CPUs with 1066MHz bus and to 21GB/s for CPUs supporting 1333MHz bus.