The retail name will stick with the established Intel Xeon name. During that time there will be Xeons based on the Dempsey Core and the new WoodCrest Core so consumers should take note that Xeon 50xx refers to one on the Dempsey core while Xeon 51xx refers to one on the WoodCrest.More details over here.
The initial WoodCrest processors we will see include Xeon 5110(1.6GHz/4MB L2/1066MHz FSB), Xeon 5120(1.86GHz/4MB L2/1066MHz FSB), Xeon 5130(2GHz/4MB L2/1333MHz FSB), Xeon 5140(2.33GHz/4MB L2/1333MHz FSB), Xeon 5150(2.66GHz/4MB L2/1333MHz FSB) and the top-range Xeon 5160(3GHz/4MB L2/1333MHz FSB), based on the LGA 771 socket. These processors are relatively low power-consuming, drawing a maximum of 80w, compared to the 130w maximum consumption of the previous gen Dempsey. They will support Intel EM64T, Intel Execute Disable Bit, Intel Virtualization Technology while Demand-Based Switching will only be supported on Xeon 5140 and higher models..