The Inquirer's Sylvie Barak heard from an AMD PR guy that the Radeon HD 4890 is outselling the GeForce GTX 275 by 30 to 1. Sounds plausible, considering that the GeForce GTX 275 isn't officially available yet.
Rubbing its hands together with glee, AMD reports that initial sales for its Radeon HD 4890 – which was released and widely available on April 2nd – are outstripping the GTX275 at a rate of 30 to 1.
AMD – which, like Nvidia, sells GPUs to partners rather than flogging complete graphic boards – claims this particular piece of SpInfo comes from two of the largest resellers in Europe.
Although our INQuiring minds may be inclined to take AMD's claims with a large pinch of salt, it's also worth bearing in mind that good launches tend to put a few thousand cards in the channel, whilst mostly-paper launches barely manage two dozen.