ATI Planning to launch Radeon HD 5830: HD 4890 performance, but cheaper
 

Exact specifications, as in the number of shader processors or clock frequencies, are still unclear. Our sources suggests that Radeon HD 5830 will use GDDR5 memory and offer performance on the line of AMD's Radeon HD 4890 card, but at a lower price.

We're guessing the design will be the same as the more powerful siblings, but even if the price hasn't been set it would be nice with a card from the Radeon HD 5800 series that costs less that $200. In a few weeks we will know more.

http://www.nordichardware.com/news,10553.html