Thats not too far off, there are a few other components that have prevented them from being made. Then there is also ASIC's (for mining) where Nvidia particularly has dumped a good portion of their chips in to stifle the loss of income from not being able to make their cards. There has been a level of skepticism that they would of done this anyway but they make such a large profit from their cards with a massive demand for them that it doesn't make much sense that they wouldn't put much more effort into getting cards to the masses. Not to mention their server side of business has suffered as a result as well.Seeing the same thing in computer parts too. Read some of the shortages around graphics cards are related to there being a shortage of the memory they use.
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