Nvidia will unveil its GTX 400 series 'Fermi' graphics cards...

"To clarify, launch date for GeForce GTX 480 and GTX 470 is 26 March, 2010," read the tweet from Nvidia's account.

The 400 series, which will comprise the GTX 470 and GTX 480 at launch, will be a major step for Nvidia as it looks to take the graphics card to the next stage.
An XFX branded Nvidia GeForce GTX 480 graphics card
has already got listed at U.S. retailer's site for $699 (Rs. 33,600 approx.). Unfortunately, no specifications were available in the listing. We may expect the price of GTX 480 and GTX 470 to be between $700-$600 at the time of launch.

Features

That means the silicon has been designed from the ground-up to match the latest concepts in parallel computing. The basic features list reads: 512 CUDA Cores, Parallel DataCache, Nvidia GigaThread and EEC Support.

This brings 3 billion transistors and a card that should take GPGPU to a whole new level.