The new Ripjaws Z family of Quad-channeled memory will cover a wide range of users thanks to the wide range of options. The new family will start at 1866 MHz and ramp up to 2933 MHz starting at 1.5V. Capacities will range from 16 GB to 64 GB. There are a few surprises with several of the kits at 1.6 V falling between the two most common voltages for Intel XMP certified memory kits.
Currently G.Skill has not provided pricing or availability at this time, but I expect release to be very soon as Ivy Bridge-E is already on the market (see our review). If you need high performance RAM, the competition is starting to get dangerously awesome. Full press release is posted below.