Researchers at the University of Kentucky have constructed and demonstrated an innovative new, scalable, parallel supercomputer that achieves application performance of more than 1 billion floating point operations per second (GFLOPS) for every $100 spent on building the machine. The approach used to design and build this machine makes it cost-effective for solving a wide range of problems, from drug design using computational chemistry to design of quieter printers using computational fluid dynamics (CFD). Thus, this breakthrough, that was not reached with Opteron processor but plain old Athlon XP2600+ Barton, is not only a milestone, but also will enable many more scientists and engineers to use computational models.