<A HREF="http://www.eweek.com/article2/0,4149,1337633,00.asp" target="_new">Full details here!</A>
<A HREF="http://www.cbc.ca/stories/2003/10/03/chretienpot031001" target="_new">"I will have my money for my fine and a joint in the other hand." - Prime Minister Jean Chrétien</A><i>Written by eWeek.com</i>
<b>ClearSpeed's 32-bit CS301 coprocessor runs at only 200MHz but outputs up to 25.6 gigaflops per processor. The company's chief designers envision the chip perched on a PCI daughtercard, assisting the main CPU with computation-intensive parallel tasks, such as those used in the biotechnology and scientific communities.
The coprocessor is relatively small—41 million transistors take up 72 square mm using an IBM 0.13 silicon-on-insulator process—but the processing power comes from the combination of an array of 64 processing elements organized across the surface of the chip. Instead of being fed by an individual cache, each element contains its own register file and program-execution memory.
The chip's 25.6-gigaflop output is more than double the 12 gigaflops produced by a 3.0GHz Pentium 4. By comparison, the National Center for Supercomputer Applications was using a 1,512-processor, 660-gigaflop SGI Origin2000 array up until November 2002. Running the chip at a low clock speed also means that the CS301 consumes very little power: only 2.5 watts, meaning that the chip produces 8.5 gigaflops per watt, compared with just 0.1 gigaflop per watt for the Pentium 4.
By 2004, the company said, a CS301-assisted cabinet of Opteron or Itanium processors could generate 48 teraflops, more than the 36 teraflops currently produced by Japan's Earth Simulator, an estimated $350 million investment that required its own building.</b>