This processor, along with Gilo and Gainestown, will use the new Socket B which features 1366 shiny dots. The 45nm Bloomfield will feature four cores and will have an integrated DDR3 memory controller.
The integrated memory controller isn't something new, AMD is already using this for years in the Athlon 64. Another technology we're going to see in Bloomfield is Hyper-Threading. This technology was first used in the Pentium 4s and a new revised version will make its return in mid-2008.
The Bloomfield CPU will possibly also feature revamped FPU units and maybe new SSE instructions.