SIS added a DDR400-based Pentium 4 chipset to its roadmap yesterday. But with the memory spec. as yet unratified - even DDR333 has yet to gain fill JEDEC approval - don't expect it any time soon.

Indeed, even SIS isn't giving any indication of when the part with ship beyond a very broad 'sometime in 2002'.

Still, it's clear that it wants to be the first company to announce such a part, just as it was the first to announce a DDR333-based chipset, the SIS645.

The 645 has won the support of a number of big-name mobo makers, including Elitegroup, Gigabyte, Soyo, MSI, Asus, Abit and Chaintech. ®