Taiwanese motherboard makers say the MCP72 will arrive in two versions: the MCP72XE for high-end systems and the mainstream MCP72P. Both chipsets support the new AMD Phenom K10 processors and HyperTransport 3.0.
The MCP72XE will have a two chip design and will have dual 16x or quad x8 PCI Express 2.0 support. The cheaper MCP72P will use only one chip but will only support dual 8x PCI Express 2.0.