David Kanter from RealWorldTech took an indepth look at Intel's upcoming Haswell architecture, you can read his analysis over here.
Haswell is the first family of SoCs that have been tailored to take advantage of Intel’s 22nm FinFET process technology. While Ivy Bridge is also 22nm, Intel’s circuit design team sacrificed power and performance in favor of a swift migration to a process with a radically new transistor architecture.
The Haswell family features a new CPU core, new graphics and substantial changes the platform in terms of memory and power delivery and power management. All of these areas are significant from a technical and economic perspective and interact in various ways. However, the Haswell family represents a menu of options that are available for SoCs tailored to certain markets. Not every product requires graphics (e.g. servers), nor is a new power architecture desirable for cost optimized products (e.g. desktops). Architects will pick and choose from the menu of options, based on a variety of technical and business factors.