Intel's 45nm is supposed to go online next year. The first 45nm chip is Penryn, a mobile CPU and successor to Merom. Penryn will spawn two desktop cores, Wolfdale and Rigefield. The only difference I know between those two cores is that Wolfdale has a 3MB L2 cache, wheras Ridgefield uses a 6MB L2 cache. These are set to be released in early 2008, which means that they may not have a long shelf life if Intel sticks to their aggresive roadmap and releases their next-generation Core processor, Nehalem the same year. Other chips include Yorkfield (8 Cores), Bloomfield (Native Quad-core), and Perryville (2MB L2 Single Core).
My source:
http://www.tomshardware.com/2005/12/04/top_secret_intel_processor_plans_uncovered/page7.html
Cores have been know to mysteriously disappear from development, so don't neccesarily expect all of these to show up if Intel has problems.
To answer your other question: I think it's too early to tell whether any current chipsets will be compatible with 45nm processors. Given Intel's track record, I'm inclined to say no. I would assume that the Bearlake series of chipsets being released next year will be.
My source:
http://www.tomshardware.com/2005/12/04/top_secret_intel_processor_plans_uncovered/page7.html
Cores have been know to mysteriously disappear from development, so don't neccesarily expect all of these to show up if Intel has problems.
To answer your other question: I think it's too early to tell whether any current chipsets will be compatible with 45nm processors. Given Intel's track record, I'm inclined to say no. I would assume that the Bearlake series of chipsets being released next year will be.
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