Of course, everybody knows about the 7th FASTEST SUPERCOMPUTER in the world -located at Virginia Tech's TERASCALE Computing Facility. Built entirely out of APPLE MAC G5's for a FRACTION of the cost of other computers...no INTEL or AMD on THAT list ;)
SYSTEM X SUPERCOMPUTER: http://www.tcf.vt.edu/
oppps...Intel ITANIUM..in 5th place...for a discontinued processor ...lol