EETimes and ZDNet published articles, AMD gains, Intel slumps in latest supercomputer rankings and AMD gains, Intel fights back on supercomputer list. Which talks about the processors that are use in the Top500 Supercomputers.

AMD chips were used in 113 supercomputers, or 22 percent of those on the latest list, up from just 11 percent (or 81) a year ago ago. Intel CPUs took their biggest decline ever, slumping from a high of use in 333 systems or a year ago to 261 or 52 percent of systems on the current list. Power appeared in 93 systems, or 18.6 percent of the computers, up from 73 systems or 14.6 percent one year ago. Intel's Itanium chip family slipped from 37 to 35.

Sun Microsystems has 10 systems on the list all which use AMD's Opteron. The three Sparc systems are Fujistu models using Sun's Sparc64 processor. Hopefully in the future we'll see SPARC climb back onto the list. There are some exciting SPARC processors under development.