Only rumours at this point but Videocardz are usually there or there abouts.
If it is going to be faster then the GTX780 then AMD is back into the 'big die' strategy if its to be fabbed at 28nm.
Source
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According to ChinaDIY, AMD could be preparing its Radeon HD 9000 series for October, which is the launch month for Battlefield 4, a Gaming Evolved title. My information is more optimistic. Unless the roadmap has changed, AMD could show off the new series in September. Some sources even claim it could be the first week of September. Regardless of what month is it going to be, we are two or three months until the new series arrive. Most likely AMD will start with HD 9970, which if the rumors are true will be faster than GeForce GTX 780, but slower than GTX TITAN. However the big question is not the performance, but the price. If the card would cost $550, then we have a clear winner.
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If it is going to be faster then the GTX780 then AMD is back into the 'big die' strategy if its to be fabbed at 28nm.
Source
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