Amd talks about threadripper's disabled dies

Much has been said about AMD's CPU Threadripper, particularly when it comes to manufacturing. At first they were thought to be actually EPYC because it had four full 8-core modules, the same design as AMD's 32-core EPYC chips.

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The presence of gold plating under the four matrices seemed to confirm that these were actually four complete matrices, rather than two matrices and two spacers to smoothly sustain pressure on the IHS.

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James Prior has shed some light on the matter on Twitter, clarifying exactly what is going on and justifying AMD's use of "fictitious" and "inactive" nomenclatures. First of all, no, there is no way to reactivate unused dies.

"Threadripper is not an Epyc processor. Different substrates, different matrices, 2 dies are functional and the other 2 dies are not functional.

The funny thing is that AMD still does not talk about ten disabled so we still do not know if two of them have really been wasted for each processor, the logical thing to think is that no and that defective dies have been used that cannot be functional in any way.

It has also been clarified that Threadripper takes 5% of the dies with the best quality and the rest are used for the manufacture of Ryzen processors for the AM4 platform. Something logical since it is the high-end platform.

Source: techpowerup