Mobile Core i7 i5 Roadmap
Virtually all the essential details for Intel's first mobile chips based on the Nehalem architecture have escaped today courtesy of a roadmap. It now says the quad-core Clarksfield processors at 1.6GHz, 1.73GHz and 2GHz will be named the i7-720QM, i7-820QM and i7-920XM respectively with 8MB of cache on all but the slowest model. In a surprise, however, all three will also have dramatic headroom for increased clock speeds and should scale up to 2.8GHz, 3.06GHz and 3.2GHz. It's implied in the Impress leak that these speeds will come through Turbo Boost, a feature that shuts down one or more of the cores in return for higher clock speeds for tasks that don't need every core.