ntel just held a press conference in which the company spoke about its next-generation server processor, currently code-named Nehalem-EX. As its name suggests, the Nehalem-EX is based on the Nehalem microarchitecture which debuted with the Xeon 5500 and Core i7 series processors. The Nehalem-EX series however, will be decidedly more high-end in terms of specifications and performance. Whereas current Xeon 5500 series processors feature four execution cores per CPU with support for up to eight threads through the use of Hyper-Threading, the Nehalem-EX series will be outfitted with up to eight execution cores per chip with support for up to sixteen threads, and 24MB of cache. In addition, Nehalem-EX will also sport some features carried over from the Itanium line, like Machine Check Architecture (MCA) Recovery.
http://hothardware.com/News/Intel-Unveils-NehalemEX-OctalCore-Server-CPU/
Perhaps the next Mac Pro CPU in a few months?