from Ati-Forum.de have managed to get their hands on an AMD's Zambezi slide which shows some info regarding AMD's new lineup that should start to show up sometime in the second quarter of 2011.
The lineup includes a total of four Zambezi CPUs, two 8-cores, one 6-core and one 4-core, all with Turbo Boost. The two 8-cores share the same amount of L3 cache, 8MB, and should be the first ones that will appear during the first half of the 2Q 2011. The top one will have a 125W TDP while the second will have a 95W TDP and it will probably be somewhat slower.
The 6- and 4-core parts should show up in the second half of Q2 2011, and both will have a 95W TDP. The 6-core will have a same amount of L3 cache as the 8-core models while the 4-core will have half of that, 4MB. Of course, it is still early to talk about the precise date and things might change while we get closer to Q2 2011, but for now AMD's roadmap looks like that.
You can find the slide here