Intel is expected to unveil its 22nm Ivy Bridge CPUs in March 2012 at the earliest, with initial offerings focusing on dual- and quad-core models, according to sources at motherboard makers.

The quad-code Ivy Bridge CPUs will have thermal design power (TDP) ratings of 45W, 65W and 77W, while the dual-core models will have TDP ratings of 35W and 55W, indicated the sources.

For the 7-series desktop CPUs, Intel will launch Z77 and Z75 chipsets to replace its Z68 and P67, and a H77 to replace H67. Additionally, Intel will also release Q77, Q75 and B75 chipsets for business models, replacing the Q67, Q65 and B65.