Intel Granite Rapids & Sierra Forest Xeon CPU Detailed In Avenue City Platform Leak: Up To 500W TDP & 12-Channel DDR5
Platform details of Intel's Avenue City platform which will be supporting the next-gen Granite Rapids & Sierra Forest-AP Xeon CPUs have been leaked.
The information was leaked within two slides posted by YuuKi_AnS and gives us a look at what the next generation of Xeon platforms has to offer. For now, Intel has its Eagle Stream platform that is going to support the existing Sapphire Rapids-SP and upcoming Emerald Rapids-SP CPUs. This CPU platform is based around the LGA 4677 socket. For the next iteration of Xeon chips, Intel will have a new Mountain Stream and Birch Stream platform. The Birch Stream platform will be designed for a high-end series of Xeon chips including Granite Rapids-AP and Siera Forest AP and we have our first good look at what the reference Avenue City platform has to offer.
Starting with the details, the reference Avenue City motherboard features a 16.7" x 20" design with 20 PCB layers. The CPUs come with a 13-layer package. The reference platform houses two massive LGA 7529 sockets that feature support for Granite Rapids and Sierra Forest-AP CPUs with up to 500 Watt TDP support. The platform comes with a total of 24 DDR5 DIMMs with support for 12-channel memory, 6 PCIe Gen 5 x16 links (Gen5/CXL), and 6x24 UPI links. The Granite Rapids-AP CPUs will be featuring up to 128 cores and 256 threads and will come in HBM flavors as ES/ engineering samples have shown.
Talking about the memory itself, the 24 DDR5 DIMM slots support up to 6400 Mbps speeds in 1DPC configurations and up to 8000 Mbps with MCR (Multiplexer Combined Ranks). Intel did demo its next-gen Xeon CPUs running DDR5-6400 memory last year and that's exactly what the Granite Rapids family is going to utilize.
Other features of the Avenue City
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