MacNN: Mac cluster achieves 233 Gigaflops:

Researchers and staff at USC and UCLA have achieved a milestone for cluster computing and the Macintosh platform, achieving 233 Gigaflops on a Macintosh cluster. Using AppleSeed software, a project begun by UCLA physics researchers in 1998, researchers found no evidence for an intrinsic limit to the size of a Macintosh cluster, indicating that "Mac clusters have excellent potential scalability." The tested environment included 56 dual-processor G4/533s and 20 dual-processor G4/450s connected via a large 100BaseT switch.