Intel Granite Rapids CPUs could be 1.7x bigger than Sapphire Rapids

Published: Feb 2nd 2023, 11:42 GMT   Comments

Intel’s Granite shows ‘Rapid’ growth

The LGA-7529 socket that has been leaked earlier this week is measured to be significantly bigger than current Xeon CPU.

Intel LGA-7529 socket, Source: Yuuki_AnS

According to SkyJuice60 (Angstronomics) and YuuKi_AnS photos, the new socket called 7529 not only will offer 61% more pins than current LGA-4677 platform for Sapphire/Emerald Rapids, but it will also be significantly larger. The package die area is estimated to be 105×70.5 mm, which means an increase of 70% compared to current Xeon series.

Next generation Xeon platform codenamed “Birch Stream-AP” is expected to support two products, namely Granite Rapids and Sierra Forest. Both products would use the same socket, but they would offer vastly different core architecture. The former would be based on Performance cores while the latter would use Efficient cores exclusively.

Intel LGA-7529 “Birch Stream” development board, Source: Yuuki_AnS

According to the rumors, Granite Rapids may offer 128 cores (Redwood+ Cove), while Sierra Forest at least 334 smaller cores (core name was not confirmed yet). Intel is reportedly developing even more powerful variants, however information on such designs is still very limited.

Some details on Granite/Sierra successors were recently shared by Moore’s Law is Dead, who claims that Diamond Rapids will be accompanied by a product series known as “Clearwater Forest”. This would be a Sierra successor based on a next-generation E-Core implementation.

RUMORED Intel Xeon Series Roadmap
VideoCardz.comEagle StreamBirch StreamNext Platform?
Sapphire RapidsEmeralds RapidsGranite RapidsSierra ForestDiamond RapidsClearwater Forest
SocketSocket E (LGA-4677)LGA-7529TBC
Release Year20232023202420242025+2025+
Core µArchGolden CoveRaptor CoveRedwood+ CoveTBCNext Performance-CoreNext Efficient -Core
Fabrication NodeIntel 7Intel 3Intel 3TBCTBC
Max Cores5664128334TBCTBC
Memory Support8x DDR5-48008x DDR5-560012x DDR512x DDR5DDR5DDR5
HBM Supportup to 64GB HBM2eYesPlannedTBCTBCTBC
PCI ExpressPCIe 5/4, 80 lanesPCIe 5.0, 80 lanesPCIe 5.0PCIe 5.0PCIe 6.0PCIe 6.0
CXL SupportGen1Gen1Gen2Gen2Gen3Gen3

Source: @SkyJuice60, YuuKi-AnS, Moore’s Law is Dead

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