Intel Xeon Scalable processors of the Sapphire Rapids-SP generation look pretty impressive on paper. They will have up to 56 cores, support for PCIe 5.0, DDR5 and HBM memory. Despite the fact that the release of these CPUs is still far enough away, today we can look at photos of engineering samples.
As you can see, the CPU consists of four crystals, and it is known that each contains 20 cores. That is, a processor can have 80 cores in total. At the same time, due to the specifics of the layout, Intel cannot make all 80 cores active, and the theoretical maximum is 72 cores. At the same time, the document that got to the Network indicated that Sapphire Rapids-SP would be 56-core maximum. For what reasons such a significant restriction will be implemented is unclear. Perhaps, it is elementary because of too high power consumption, since even in this form, the top-end CPU will be characterized by a TDP of 350 watts.
In the case of the monitored sample, it contained just 56 active cores and 64 GB of HBM memory with a bandwidth of 1 TB / s.
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