This thread is pretty funny with some people holding single thread performance as the yardstick and some people holding fully multithreaded as the yardstick. Of course the majority of the posts don't mention single or multithreaded performance and are drawing conclusions...
Umm, single threaded performance, unless there is a miracle, BD will not beat SB.
Multithreaded performance, however, is all about priceerformance and powererformance. Can't tell **** before release.
Enthusiast multithreaded decisions, in addition to priceerformance and power usageerformance are also about price: overclocked performance and power usage: overclocked performance. Can tell even less **** about that before release.
I think the 6 core Thuban vs. 2600k benchmarks bode well for 6 core BD vs. SB... I mean shrinking process, adding transistors, it would be really difficult to not gain 10-15% perfomance. However, without pricing information you can make no conclusions that matter.
More food for thought is availability. Llano was in the press a couple weeks ago and you can't buy actual systems yet, let alone components. Is BD going to be any different? I'm not chomping at th bit to get anything, but release date is one thing. Being able to walk into Microcenter and buy something is likely to be significantly later than launch date.