The GeForce 8800 GT only came out four months ago, but according to a report by DigiTimes, Nvidia already has a successor lined up. Or at least, the site says Nvidia is preparing a "GeForce 9800 GT" graphics card for a launch some time between late March and early April.
The new GPU would join the GeForce 9600 GT, which came out yesterday, in the shiny new GeForce 9 series. The 9800 GT may also be preceded by two additional GeForce 9 cards, according to the report: a GeForce 9800 GX2 and a GeForce 9800 GTX. The GX2 has already been the object of many reports, which have said it will feature dual G92 graphics processors and will be poised as a competitor to AMD's Radeon HD 3870 X2. The GeForce 9800 GTX is rumored to be G92-based just like the latest GeForce 8800 offerings, just with a higher core clock speed. DigiTimes says we can expect the GX2 to show up on March 11, while the GTX is due for the same late March/early April time frame as the 9800 GT.
Nvidia won't stop there. According to DigiTimes, more GeForce 9 models are in store for the second and third quarters, including a GeForce 9600 GS in May, a GeForce 9500 GT in June, and a GeForce 9500 GS in July. DigiTimes doesn't quote any specifications or pricing for these cards, but their model numbers should give a rough idea of how they might be positioned in Nvidia's lineup.