$200 and 90% as fast as the $700 Nvidia 1080 cards. Crossfire two together for $400 and you beat a card worth almost twice as much. AMD stock is also starting to climb in response. I' love to swap out my SLI pair that is starting to struggle, and may have to fork over some money in July when these cards are actually available. My hope is that AMD makes enough cards so that they don't have the problem NVidia is having right now- lack of product.
The 8GB version of the 480X is going to retail for $240 and will be able to work with the Vive and Rift at full framerates.