3D-Rendering: Newtek Lightwave 7b
Using a second CPU really pays off in the Lightwave benchmark: rendering only takes about half the time.
3D-Rendering II: 3D Studio Max 4.2
The 3D Studio Max benchmark yields astonishing results: the second CPU only results in a 7% gain. In all likelihood, optimizing the software for AMD Athlon could achieve significantly better results.