Hexus gives us a preview of the NVIDIA nForce 780a SLI chipset.

Quote: "The nForce 780a SLI chipset is one of NVIDIA's first significant updates to its AMD-based chipsets since the nForce 590 SLI and provides features such as integrated graphics with Hybrid Power functionality.
Though Hybrid Power only functions when compatible NVIDIA cards such as the GeForce 9600 GT or 9800 GX2 are in use, it allows users to save power by disabling any compatible discrete graphics cards when they're not required."
Read the full preview on Hexus.