Our tests were 'stopwatch' so they are not deadly accurate, but good enough to show indications. Here's a quick disclaimer. This chart is for one test only. It's also very good news for those of you out there thinking that a 350 MHz G4 might not be worth getting simply because the megahertz number is low. Also, below we have technical explanations from our contacts at Diehl Graphsoft about QuickDraw 3D and OpenGL rendering and what is going on mathematically with the chip.
Shorter bars are better.
Time in seconds it took to process a VectorWorks rendering in Final Hidden Line mode. QuickDraw scores are noted below. The file was a 750K file, VectorWorks 8.1 and 8.5.1 on Mac and Windows. On the G4 the tests took approximately 4 seconds. With such short time intervals this QuickDraw 3D rendering test was harder to stopwatch accurately.