From a floating point standpoint, the Emotion Engine as a whole, is rightfully more capable than a 733MHz Pentium III. It's in the same vein as the Cell BE vs the Xenon CPU in the 360. On one side you had a GFLOPS monster that went underutilized (EE & Cell) vs a more practical processor (Pentium III & Xenon) with a more general processor setup and therefore easier for devs to grasp.