SYSmark 2000 - Windows 98 SE
The boards from ABit, Asus and Soltek score the highest SYSmark numbers. Only slightly behind are the three others from Azza, DFI and Epox. I guess the KT7A from ABit is able to dominate this benchmark due to the fact that you can do a lot of fine-tuning in the BIOS. Even if you do not take advantage of those options, the 'auto' option ensures good performance as well.
Mercedes Benz Truck Racing
It's highly recommendable for motherboard tests to use the lowest resolution (640x480). By doing this you can make sure that the only bottleneck is the motherboard and not the graphics card (fill rate).
This time, Soltek is able to gain the top spot. The motherboards from Epox and DFI are a bit slower than the rest, but are still fast. Those differences diminish almost completely at higher resolutions, as soon as the fill rate of the 3D card has more influence on the frame rate scores.
Quake III Arena
We found more differences in Quake III Arena. The spread was almost 10 fps or about 6%. Again, this scaling becomes quite uninteresting if you want to play at high resolutions (1024x768 or more), even if you should be using a fast graphics card. ABit shows the direction in this benchmark.