CPU World listed a summary of the features of Intel's upcoming Ivy Bridge mobile processors, you can check it out over here.
Three quad-core SKUs, planned for April of next year, are Core i7-3920XM Extreme Edition with unlocked clock multiplier, Core i7-3820QM and i7-3720QM. Extreme Edition CPU has 8 MB L3 cache and 55 Watt Thermal Design Power, whereas 3820QM and 3720QM have 45 Watt TDP, and 8 MB and 6 MB of last level cache respectively. The quad-cores are clocked from 2.6 to 2.9 GHz, and their maximum Turbo Boost frequency ranges from 3.6 to 3.8 GHz.
Upcoming dual-core mainstream models with 35 Watt TDP are Core i7-3520M, Core i5-3360M and i5-3320M. Core i5 CPUs have 3 MB L3, and Core i7 chip features somewhat larger 4 MB cache. The processors operate from 2.6 to 2.9 GHz, with maximum Turbo frequency reaching 3.6 GHz. These microprocessors will be released in May 2012.
Two other SKUs, that will be available in May 2012, are Ultra-Low Voltage Core i7-3667U and Core i5-3427U. These parts come with 2 CPU cores, and run at 1.8 and 2 GHz, or up to 2.8 GHz and 3.2 GHz in boost mode. Core i7-3667U features 4 MB L3 cache, and Core i5 chip has 3 MB level 3 cache. Both microprocessors boast significantly lower power consumption than mainstream models, 17 Watt for the CPU and on-chip graphics combined.