The high end Sandy Bridge Extreme processors have launched along with the X79 chipset and motherboards. This effectively replaces the older Core i7-9xx and X58 products.
Here are a few of the reviews for your reading enjoyment.
http://techreport.com/articles.x/21987
http://www.hardocp.com/article/2011/11/14/intel_core_i73960x_sandy_bridge_e_processor_review
http://www.legitreviews.com/article/1773/1/
http://www.pcper.com/reviews/Processors/Intel-Sandy-Bridge-E-Review-Core-i7-3960X-and-X79-Chipset-Tested
Disappointingly Intel only launched the six core $600 and $1,000 processor models. There is a much more affordable four core $300 model that apparently we'll have to wait longer for.



