[citation][nom]aznshinobi[/nom]Bulldozer = Desktop.AMD is taking a more power saving approach with Llano and I think Ontario. Both of which are CPU/IGPUs. Saves a lot more power, but we'll see if SB saves power like Llano and Ontario. Oh, those are out already in benches if ya didn't know.Correct if I'm wrong though, I don't really mind Laptop stuff.[/citation]
SB also has a GPU on die. If the laptop has a discrete GPU then it will probably use SBs GPU for 2D and the discrete GPU for 3D.
I am pretty sure that SB will lower power usage compared to Nehalem and Westmere. It will be produced on the most optimal to date 32nm that Intel has until 22nm arrives in 2011.
As for the HM55 chipset, there is no news on the socket and the chipset itself has near no bearing on a CPU and mobo compatability these days since everything is pretty much on die including the PCIe controller. I would guess its either 1. a typo, 2. SB mobile might use the same socket as Arrandale (PGA-988) or its a new socket but can still use HM55.
We might have a bit to wait since I can't find any info on the mobile SB socket.