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Example, how Intel could use their superiority and fast feedback. Semiconductor fabs usually not make ultraclean materials themselves, but bought from many smaller specialized entities. As example exist few companies, producing ultraclean silicone as crystal cylinders. When fab bought such crystal they could slice from it few wafers and made test runs with their product line designs. For example, they could try i7-7700, i7-7700hq and i7-7700k. If they seen good output with 7700k, it is best possible, as these chips have very similar die size, but 7700k is most expensive; if they seen moderate output with 7700k, but good output with 7700, it's also ok, for them also good demand; but if only 7700hq have good output, things are not good, because notebook chip is not so easy to sell, so have to do some marketing (usually these seen as some exceptionally high prices for some chips, because of low silicone output). Unfortunately, semiconductors have limits on how large could be one die. Companies like Cerebras use some tricks, usually they just disable parts of die with jumpers, as I know, same tricks used Nvidia before 30th series, but approx same time appeared whole industry movement for chiplets standards, and looks like Nvidia used 2.5D technology to avoid trap with too large die. |