Intel shows off its quad core <A HREF="http://news.com.com/Intel+shows+off+its+quad+core/2100-1006_3-6038148.html?tag=nefd.top" target="_blank">http://news.com.com/Intel+shows+off+its+quad+core/2100-1006_3-6038148.html?tag=nefd.top</A> Clovertown, a four-core processor, will start shipping to computer manufacturers late this year and hit the market in early 2007.