The first PCIe AMD64 chipset that consumers could get their hands on was the nForce 4 from NVIDIA, then followed VIA's K8T890 offering. Now it's the turn of SiS. Do they have anything special to offer?
Realistically speaking, the functions SiS currently offers are precisely what is necessary: four SATA ports, which should be enough for the time being, especially since DVD drives with SATA are still few and far between. The fact that SATA II is not yet supported is not a problem either, at least for now, though command queuing would be nice. Two full UltraATA channels are offered, same as the competition. SiS takes the lead over VIA with its integrated Gigabit network chip, lowering costs for all manufacturers who would like to offer this functionality.
[The review]