Because for core counts lower than 30 one monolithic chip might be actually cheaper than those 2 tiles with EMIB and all the additional logic it requires and the complex substrate underneath.This is from Anandtech
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Interesting enough... Sapphire Rapids HMB will use the same HMB Modes used in Knights Landing
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I really don't understand why people believe that Intel made yet another expensive, non-modular monolithic CPU.
This quote is from Intel.
"At the heart of Sapphire Rapids is a tiled, modular SoC architecture that leverages Intel’s embedded multi-die interconnect bridge (EMIB) packaging technology to deliver significant scalability while maintaining the benefits of a monolithic CPU interface. Sapphire Rapids provides a single balanced unified memory access architecture, with every thread having full access to all resources on all tiles, including caches, memory and I/O. The result offers consistent low-latency and high cross-section bandwidth across the entire SoC."
If such chip truly exists, perhaps it will be that rumored "Alder Lake-X", rather than SPR. If the fact, that Intel was talking about tiled-based approach in regard to SPR is the issue here.