AMD's 32 and 64-bit technology fits two processor cores on a single die, which the company reports doubles processing capacity in the same amount of space with minimal increase in power consumption and heat levels. The Crays' system architectures speed high-performance computing by directly linking processors, memory, and I/O resources instead of using a conventional PCI bus. These architectures ensure that sophisticated software can exploit all available processing power as more processors are added to the system.

AMD Inc., One AMD Place, Sunnyvale, CA 94088, (408) 749-4000, http://multicore.amd.com/en