Creative talks X-FI PCI Express
 

So the Extreme Audio will launch, will be Vista compatible, and will support the new Universal Audio Architecture that Microsoft has developed. This edition of the card will be the John the Baptist to the Fatal1ty and Extreme Gamer editions. Also returning will be the X-RAM - Creative's own 64MB of on-card memory. Despite the fact it has been shunned, for the most part, by the gaming industry - appearing only in the Quake and Battlefield series - Creative is still pushing it as a big differentiator over motherboard audio.

http://www.theinquirer.net/default.aspx?article=42321