Maybe looking to steal a bit of thunder from Nvidia's upcoming GeForce GTX 275 release, there's a chance AMD will release its ATI HD 4890 on April 2nd, a week ahead of schedule, says VR-Zone. The reviews and news outlet doesn't cite any sources, but did say that both Asus and Gigabyte have already begun selling the HD 4980 in Taiwan and Hong Kong for HK$2,280 (US$297) and HK$1,999 (US$258), respectively.
As previously reported, reference specs for the RV790-based HD 4890 include 1GB of GDDR5 memory running at 3,900MHz and a core clockspeed of 850MHz. No official release date (that we know of) has been given, but if AMD does introduce the new card on April 2nd, it will have beat Nvidia to the punch by a full week if Nvidia sticks to its April 9 release date for its upcoming GeForce GTX 275. A likely scenario if, as VR-Zone claims, "their GTX 275 isn't ready yet and the clocks aren't even finalized."