NVIDIA is hosting a “Special ‘Must See’ Presentation” on March 26th at PAX East 2010. Via Twitter, the company has announced that its top-end GTX 480 and GTX 470 graphics cards will be available on March 26th.

Aimed at intense gamers, the GTX 480 is a monster and is speculated to retail for $699. Both GTX 400 series cards are based on NVIDIA’s new “Fermi” GF100 architecture, which the company is hoping will take it back to the GPU zenith that long time rival ATi presently sits atop.

Source: NVIDIA’s “Must See” Presentation, NVIDIA’s Twitter