VR Zone published the feature list of Intel's P55 "Ibex Peak" single-chip chipset which will be launched in Q3 2009 for the Lynnfield and Havendale processors.
Internally, Ibex Peak with Lynnfield/Havendale is known as Summitlake. It has the ability to support dual graphics like SLI and Crossfire in x8/x8 configuration. However, the P55 chipset interconnect is still on the DMI instead of the new QPI found on the X58 chipset. For the I/O aspect, it supports 14 USB 2.0 ports, 8 PCIe 2.0 x1 ports, 6 SATA 3.0Gb/s ports, Gigabit Ethernet and IMST 9.0 with FIS port multiplier.