SGI 10,000 core concept
 

In a bold move, Silicon Graphics has decided to see how much crap many cores they can shove in one box. The Molecule is 10,000 core rackmount machine designed to leverage low cost consumer CPUs like the Intel Atom. It emphasizes high memory bandwidth and throughput between CPUs. While this sort of space efficiency is interesting it’s certainly going to take some serious cooling to get designs like this off the ground.

http://hackedgadgets.com/2008/11/19/...core-computer/