Its normal practice that qualification process is validation of it. It is not due to Nvidia, but manufacturer of the chip - TSMC, Intel, GloFo, no matter.Is that 3 month set in stone by the old all mighty? Is that a law that they have to obey?
See, unless you're in charge of NVidia or AMD production, all you have to go on are some picture that can be interpreted any which way you want and some speculation about what they mean and how both company really manage their production line and testing...
https://books.google.pl/books?id=Vo...epage&q=qualification of silicon chip&f=false
Here, you have explanation why it usually takes 3 moths for Qualification silicon to end on market.