In MacBench tests this increased FPU performance overall. Performance of individual math functions may be greater than this. Testing was done using MacBench 4.0 on system 8.1. MacBench profiles popular software programs such as Adobe Photoshop, Word 6.0 and QuarkXpress among a variety of others and applies these profiles to the various subsystems being tested. See this description of what MacBench tests and how.
Longer bars equals faster performance.