NVIDIA is working on new chipsets, including the single-chip MCP73P for the Intel platform. This chip will support Intel processors with FSBs up to 1333MHz.
A cut down version of the same chipset, dubbed MCP73PV, will only feature a 1066MHz FSB. Our sources would not reveal the third chipset, although is it likely a derivative that does not feature integrated graphics.
MCP73 will launch with single-channel DDR2-667 support only. No SLI support will be present either, but a single PCIe x16 interface will allow users to upgrade to a more powerful graphics solution.