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Details of Intel’s fifth Gen Xeon Scalable CPU household, codenamed Emerald Rapids, have been leaked by YuuKi_AnS over on Twitter.

Intel’s fifth Gen Emerald Rapids Xeon Scalable Family To Feature Up To 64 Cores & SKUs Ranging From 125-350W TDPs

According to the leak, Intel’s Emerald Rapids-SP Xeon CPU household might be based mostly upon a mature ‘Intel 7’ node. You can consider it as a 2nd Gen ‘Intel 7’ node which might result in barely increased effectivity. Emerald Rapids is predicted to utilize the Raptor Cove core structure which is an optimized variant of the Golden Cove core that can ship 5-10% IPC enchancment over Golden Cove cores. It may even pack as much as 64 cores and 128 threads which is a small core bump over the 56 cores and 112 threads featured on Sapphire Rapids chips.

This will kind of match the present EPYC Milan & Rome core counts however Genoa and Bergamo might be providing as much as 50% & 2x core/thread depend enhance over Emerald Rapids and they are going to be out there in full quantity by 2023.

Intel's 5th Gen Emerald Rapids Xeon Scalable Family To Feature Up To 64 Cores & SKUs Ranging From 125-350W TDPs 1

So speaking in regards to the platform particulars, the Eagle Stream ecosystem will permit help for 125-350W TDP SKUs on the Socket E (LGA 4677), enabling drop-in help from Sapphire Rapids-SP. The HPC and information heart section may have immense scalability choices starting from 1S, 2S, 4S, 8S and much more sockets (through xNC help) for elevated compute and core densities. The chips will include the most recent accelerators together with:

  • Intel Data Streaming Accelerator
  • Intel FastAssist Technology
  • Intel Dynamic Load Balancer
  • Intel Advanced Matrix Extensions
  • Intel In-Memory Analytics Accelerator

Besides that, the platform will allow help for sooner DDR5-5600 (1DPC) and retain DDR5-4800 (2DPC). The 8-channel DDR5 reminiscence platform will permit as much as two DIMMS per channel for a complete of 16 DIMMs per socket and every socket can help as much as 24 Gb DRAM densities. There’s additionally Crow Pass Persistent Memory help “Crystal Ridge 3.0” listed however with Optane canned, that not appears to be the case. There might be 4 UPI 2.0 hyperlinks operating at the next width pace of x24 for as much as 20 GT/s switch charges.

As far as PCIe lanes are involved, the Intel Emerald Rapids Xeon CPUs will characteristic as much as 80 Gen 5 PCIe lanes per CPU along with PCIe 4.0 lanes from the North Bridge. The platform will help bifurcation of x16, x8, x4, and x2 (Gen 4) and also will help Shared Virtual Memory & Scalable IO Virtualization. The Emmitsburg PCH will provide 20 PCIe 3.0 lanes, 1G Ethernet for Manageability, and an x8 DMI connection rated at PCIe 3.0 speeds. For safety, the platform will provide:

  • Intel Trust Domain Extensions
  • Intel SGX With Integrity
  • TME-MK – 128 Keys
  • Platform Firmware Resilience (PFR) with Peripheral Device Attestation
  • Hardware Enforced Execution Controls
  • Intel VT-Redirect Protection (Formerly HLAT)
  • Intel Control-Flow Enforcement Technology (CET)
  • VM Denial of Service Prevention
Intel's 5th Gen Emerald Rapids Xeon Scalable Family To Feature Up To 64 Cores & SKUs Ranging From 125-350W TDPs 2

By the time Intel launched Emerald Rapids-SP Xeon CPUs, AMD will have already got launched its Zen 4-powered EPYC Genoa & Bergamo chips so the Xeon lineup might find yourself being too little & too late with solely Intel’s superior instruction units backing them up in area of interest workloads. An excellent factor for Emerald Rapids could be that it’s going to stay appropriate with the Eagle Stream platform (LGA 4677).

Intel Xeon SP Families (Preliminary):

Family Branding Skylake-SP Cascade Lake-SP/AP Cooper Lake-SP Ice Lake-SP Sapphire Rapids Emerald Rapids Granite Rapids Diamond Rapids
Process Node 14nm+ 14nm++ 14nm++ 10nm+ Intel 7 Intel 7 Intel 3 Intel 3?
Platform Name Intel Purley Intel Purley Intel Cedar Island Intel Whitley Intel Eagle Stream Intel Eagle Stream Intel Mountain Stream


Intel Birch Stream
Intel Mountain Stream


Intel Birch Stream
Core Architecture Skylake Cascade Lake Cascade Lake Sunny Cove Golden Cove Raptor Cove Redwood Cove? Lion Cove?
IPC Improvement (Vs Prev Gen) 10% 0% 0% 20% 19% 8%? 35%? 39%?
MCP (Multi-Chip Package) SKUs No Yes No No Yes Yes TBD (Possibly Yes) TBD (Possibly Yes)
Socket LGA 3647 LGA 3647 LGA 4189 LGA 4189 LGA 4677 LGA 4677 TBD TBD
Max Core Count Up To 28 Up To 28 Up To 28 Up To 40 Up To 56 Up To 64? Up To 120? Up To 144?
Max Thread Count Up To 56 Up To 56 Up To 56 Up To 80 Up To 112 Up To 128? Up To 240? Up To 288?
Max L3 Cache 38.5 MB L3 38.5 MB L3 38.5 MB L3 60 MB L3 105 MB L3 120 MB L3? 240 MB L3? 288 MB L3?
Vector Engines AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-512/FMA2 AVX-1024/FMA3? AVX-1024/FMA3?
Memory Support DDR4-2666 6-Channel DDR4-2933 6-Channel Up To 6-Channel DDR4-3200 Up To 8-Channel DDR4-3200 Up To 8-Channel DDR5-4800 Up To 8-Channel DDR5-5600? Up To 12-Channel DDR5-6400? Up To 12-Channel DDR6-7200?
PCIe Gen Support PCIe 3.0 (48 Lanes) PCIe 3.0 (48 Lanes) PCIe 3.0 (48 Lanes) PCIe 4.0 (64 Lanes) PCIe 5.0 (80 lanes) PCIe 5.0 (80 Lanes) PCIe 6.0 (128 Lanes)? PCIe 6.0 (128 Lanes)?
TDP Range (PL1) 140W-205W 165W-205W 150W-250W 105-270W Up To 350W Up To 375W? Up To 400W? Up To 425W?
3D Xpoint Optane DIMM N/A Apache Pass Barlow Pass Barlow Pass Crow Pass Crow Pass? Donahue Pass? Donahue Pass?
Competition AMD EPYC Naples 14nm AMD EPYC Rome 7nm AMD EPYC Rome 7nm AMD EPYC Milan 7nm+ AMD EPYC Genoa ~5nm AMD EPYC Bergamo AMD EPYC Turin AMD EPYC Venice
Launch 2017 2018 2020 2021 2022 2023? 2024? 2025?