CPU World has a nice article detailing Intel's 7 series chipsets, you can read it over here.
Much has been written about Ivy Bridge, Intel's next generation processors. As is usual for any new processor, there are many new features that are provided by the accompanying chipset, in this case Panther Point. For the desktop computer user that initially consists of 6 chipsets in Q2 2012, with USB 3.0 as standard, Intel Rapid Start technology and a host of other features.
Initially, there will be 6 Panther Point chipsets, 3 for consumer platforms and 3 for business platforms. The 2 performance chipsets for the consumer market are known as Z77 and Z75, while the mainstream consumer chipset is H77. The high-end business chipset, also known as the Stable Platform, is the Q77. Next comes Q75, with a few less features. Lastly, we have B75, the Transactional Platform chipset.