OC Workbench has posted a review on the SiS648 Reference board
Finally, we have finished our test with the SiS 648 Reference board. In our tests, we ran it at DDR 333 and DDR 400 mode. We found out that at DDR333, the disk performance increased by almost 60% with the new IDE drivers. The graphics performance also went up and it even overtook the fastest RIMM4200 solution for P4.Read more