is this better than a 285? when is nvidia releasing its new chips?
Yes, it destroys the 285 and trades blows with the 295.
We don't know when Nvidia's chips will be ready. Most of the rumours have been very negative (Q1 2010), but hopefully Nvidia can get them out sooner so that ATi are brought back down to earth. HD 5870 X2 should be be ready by then though