High-end desktop PCs will sport <A HREF="http://www.eweek.com/article2/0,1895,2009912,00.asp?kc=EWWHNEMNL083106EOAD">quad-core processors from Intel</A> as the fourth quarter gets under way. The company, which pulled forward the launch of its "Kentsfield" quad-core desktop chip from the first quarter of 2007 into the fourth quarter of 2006, is still several months from launching the chip. However, it's now expected to introduce the quad-core processor as part of its Core Extreme family in early November.