Now, NGOHQ says it has heard from "several of Nvidia's partners" that the company intends to introduce the GeForce 8800 Ultra simultaneously with those lower-end, mainstream models. The site claims Nvidia's lineup next month will include GeForce 8300 GS, 8400 GS, 8500 GT, 8600 GT, 8600 GTS, and 8800 Ultra models, although it says none of its sources could pinpoint a release date—the aforementioned April 17 date is still reportedly "unofficial". The GeForce 8800 Ultra is expected to be Nvidia's answer to AMD's upcoming Radeon X2900 XTX. According to NGOHQ, the card will simply be an overclocked version of the existing GeForce 8800 GTX. Thanks to Reg Hardware for the tip.