Some details about the upcoming ATI 780G chipset from AMD was leaked on the internet.
This RS780 series chipset will feature DirectX 10 support, HyperTransport 3.0, UVD, 45nm processors and AVIVO HD.
It should become available next year and will replace the AMD 690G/V chipset.
For discrete chipset, the RD790 will support the Phenom and CrossFire 2.0 (formerly known loosely QuadFire) with 4 GPUs working in tandem. PCIe 2.0 s supported with double the bandwidth. RD790 supports 32 lnaes for graphics (4x4 or 2x16) and 6 pcie x1. A PCIex4 connects NB and SB.