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+--- Thread: Intel "Granite Rapids-UCC" Powering Xeon 6 6980P Detailed: Up to 132 Cores Possible (/showthread.php?tid=318)
Intel "Granite Rapids-UCC" Powering Xeon 6 6980P Detailed: Up to 132 Cores Possible - TechMaster89 - 10-01-2024
Intel "Granite Rapids-UCC" Powering Xeon 6 6980P Detailed: Up to 132 Cores Possible
Intel on Tuesday announced the ultra core-count (UCC) variant of its "Granite Rapids" server processor microarchitecture, with the introduction of new Xeon 6 series SKUs with P-core counts as high as 128-core/256-thread per socket. "Granite Rapids" microarchitecture uses "Redwood Cove" performance cores. These are newer than the "Raptor Cove" cores powering "Sapphire Rapids," and a client version of these cores power the Core Ultra 1-series "Meteor Lake" processors. The server version of "Redwood Cove" comes with 112 KB of L1 cache (64 KB L1I and 48 KB L1D), and 2 MB of dedicated L2 cache. The server version of "Redwood Cove" is optimized for the mesh interconnect core layout on the three compute tiles making up "Granite Rapids-UCC," each core comes with a 3.93 MB segment of the tile's 168 MB shared L3 cache.
Perhaps the biggest change between the client and server variants of "Redwood Cove" are the AMX-FP16 and AVX512-FP16 instruction sets. The 128-core Xeon 6 6980P processor is based on the "Granite Rapids-UCC" package, which has three compute tiles of 44 cores, each, and a 4-channel memory interface, each. The three compute tiles have cache coherence, and so each core on any of the three tiles can benefit from the processor's 12-channel DDR5 memory interface. The package also has two SoC tiles with a 48-lane PCIe Gen 5 or CXL 2.0 root complex, making up a total of 96 lanes. The processor has 6 UPI links for multi-socket machines, and supports up to a 2P configuration per system, for a maximum core-count of 256 P-cores. Each of the three compute tiles is built on the Intel 3 foundry node, while the two SoC tiles are built on the Intel 7 node. Read full story
https://www.techpowerup.com/326957/intel-granite-rapids-ucc-powering-xeon-6-6980p-detailed-up-to-132-cores-possible