According to the previous summary, after Intel next-generation Xeon scalable processor Sapphire Rapids, Emerald Rapids, Granite Rapids, and Diamond Rapids. Sapphire Rapids, originally scheduled to ship in 2021, have been postponed several times, and have been postponed to Weeks 6 to Week 9 of 2023, which has also directly affected Intel's subsequent release plan for Xeon Scalable processors. It is rumored that Emerald Rapids' timeline will also move backwards.
Recently, a netizen revealed that Granite Rapids will support eight-channel DDR5 memory, PCIe 5.0, and CXL 2.0. It is rumored that Granite Rapids is manufactured based on Intel 4 process (the original 7nm EUV process), using the Redwood Cove architecture core, providing 128 PCIe channels. Its single SoC contains multiple chiplets, which are packaged through EMIB, and will also have HBM versions and Rambo Cache chips.
In the past, it has been reported that starting with Granite Rapids, Intel's scalable Xeon server processor will use the latest AVX-1024/FMA3 to improve the performance of various workloads, but it may mean an increase in power. Granite Rapids will also use the new Mountain Stream platform and maintain compatibility with the next generation of products.
Figure: Intel's scalable Xeon server processor roadmap
Intel has not disclosed much information about Diamond Rapids, and even the code name has not been confirmed, and the specific timetable is not clear. The information leaked this time indicates that Diamond Rapids also supports eight-channel DDR5 memory, and also supports PCIe 6.0 and CXL 3.0, and there will also be an HBM version.
Since the CXL 3.0 specification was just released in August this year, it will take at least three years to appear in the Xeon extensible processor product line. It is rumored that Diamond Rapids will use Intel 3 process (the original 5nm process) and use the Lion Cove architecture core.
