How confusing is 2004 going to be? Well, if you add in Celerons, Intel will be offering four different flavours of Pentium 4 Prescotts during 2004. Chips clocking higher than 3.2GHz will have 800MHz buses, FMB1.5, then there will be 800MHz FBM1s, and there will be a few 2.8GHz Prescotts running with 533MHz front side buses but not supporting hyperthreading.Source: TheInquirer
Intel expects a quick shift to LGA 775 processors

Intel expects that by the end of this year Socket T LGA 775 processors will account for a total of 40% of desktop processor shipments. And about 17% of the total Celeron shipments during Q2 2004 will be Prescott ones.