All the Duron boards available now and in the near future use the VIA KT133 chipset. All have AGP 4x and similar features. The number of ISA slots, if any, varies, as does the number of USB ports. Feature wise, they are very similar. Maybe you are thinking of the DDR AMD760 chipset. Still no news on the actual release, don't hold your breath. SIS and Acer Labs are working on chipsets but no release date.