UR...Kyro II chips do not have support for Hardware T&L (transform and lighting). Mad Onion benchmarks rely heavily on the use of Hardware T&L. If you have Quake III, try using that as a benchmark instead of 3DMark. You'll be much happier.
As suggested above...use google or another search engine and look for some reviews...that should show you what games Kyro II shines in and some that it basically stinks at. I have one and personally I like it..but I dont' play games "alot" and I mostly stick to the "older" stuff like Half-Life, Quake III, Unreal, etc. Good luck.