Let me wrap up some of the more interesting details:
It looks like Intel is taking over some of AMD's old and new tricks. AMD's processors already feature integrated memory controllers and the firm is also working hard on a GPU/CPU chip.
Integrated memory controller Some Nehalem processors will get an integrated graphics chip. SSE4 instruction set Four-issue core Parallelism, will support up to eight cores per physical processor and some sort of Hyper-Threading to allow 2 threads to be executed on one core. So basically you'll be able to run 16 threads at the same time on one processor. Multi-level shared cache like the Penryn No FSB but a new HyperTransport-like system. 45nm with high-k metal gate transistors New socket will be required