[citation][nom]rdc85[/nom]The only reason i can think of, is because they doesn't have enough of this defective chip......No way they will cripple a healthy 7850 chip, to make 7830........[/citation]
At least not while the 7850's are selling well and they dont have a stock pile of those chips. Later on if the 7850's sales lag, they make too many, or if there is a large demand in the segment, they may very well re-badge some of them as 7830's and go from there. It looks like theres obviously a market for the card, but it may not be worth the money and time to introduce this variant, at least not yet.