The GTX680 would be far outselling the HD7870 if it was available anywhere but NVIDIA’s biggest problem is that there is no supply to sell to the customers that want this card.  If SemiAccurate’s sources are correct NVIDIA has yet to ship 10,000 cards in total, which really makes NVIDIA’s stance that the supply problems are just a perception issue hard to swallow.  Mostly the fingers have been pointed at TSMC and the difficulties they have had with their 28nm production line, but that is getting old as well; if their 28nm process was inherently flawed they would not be at 95% capacity and AMDs GPUs would be just as rare as the new NVIDIA cards.  Could the issue lie with NVIDIA’s chip design being flawed and producing incredibly low yields?  Is it that somehow the design takes an incredibly long time on the line in order to produce a wafer and so yields are not low so much as slow?  It is really hard to peg down exactly what is going on behind the scenes since neither of the companies involved are willing to discuss the causes behind the shortages.  That is the normal way of things however, no matter what company you talk about, you are far more likely to see denials and finger pointing than an explanation … similar to children when you think about it really.

"Nvidia has been busily blaming TSMC for their many supposed failings on 28nm, but SemiAccurate has learned what is really going on. The short story is that the finger pointing around the Kepler launch problems should be at Nvidia, not TSMC."

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