Sapphire_Rapids_(microprocessor)

Sapphire Rapids

Sapphire Rapids

Intel microprocessor, released in 2023


Sapphire Rapids is a codename for Intel's server (fourth generation Xeon Scalable) and workstation (Xeon W-2400 and Xeon W-3400) processors based on the Golden Cove microarchitecture and produced using Intel 7.[1][2][3][4] It features up to 60 cores and an array of accelerators, and it is the first generation of Intel server and workstation processors to use a chiplet design.

Quick Facts General information, Launched ...

Sapphire Rapids is part of the Eagle Stream server platform.[5][6] In addition, it powers Aurora, an exascale supercomputer in the United States, at Argonne National Laboratory.[7]

History

Sapphire Rapids has been a long-standing Intel project along Alder Lake in development for over five years and has been subjected to many delays.[8] It was first announced by Intel at their Investor Meeting in May 2019 with the intention of Sapphire Rapids succeeding Ice Lake and Cooper Lake in 2021.[9][10] Intel again announced details on Sapphire Rapids in their August 2021 Architecture Day presentation with no mention of a launch date.[11]

Intel CEO Pat Gelsinger tacitly blamed the previous Intel leadership as a reason for Sapphire Rapid's many delays.[8] One industry analyst firm claimed that Intel was having problems with yields from its Intel 7 node with yields of 50–60% on higher core-count silicon.[12] Sapphire Rapids was originally scheduled for a launch in the first half of 2022.[13] It was later scheduled for release in Q4 2022 but was again delayed to early 2023.[14] The specific announcement date of January 10, 2023 was not revealed by Intel until November 2022.[15]

The server processor lineup was released on January 10, 2023, and the workstation processor lineup was released on February 15, 2023.[16] Those processors were available for shipping on March 14 of that year.[17] Intel shipped the millionth of this generation Xeon processors in 2023.[18]

Features

CPU

Accelerators

  • In-Field Scan (IFS), a technology that allows for testing the processor for potential hardware faults without taking it completely offline[23]
  • Data Streaming Accelerator (DSA), allows for speeding up data copy and transformation between different kinds of storage[24][25]
  • QuickAssist Technology (QAT), allows for improved performance of compression and encryption tasks[25]
  • Dynamic Load Balancer (DLB), allows for offloading tasks of load balancing, packet prioritization and queue management[25]
  • In-Memory Analytics Accelerator (IAA), allows accelerating in-memory databases and big data analytics[25]

Not all accelerators are available in all processor models. Some accelerators are available under the Intel On Demand program, also known as Software Defined Silicon (SDSi), where a license is required to activate a given accelerator that is physically present in the processor. The license can be obtained as a one-time purchase or as a paid subscription. Activating the license requires support in the operating system. A driver with the necessary support was added in Linux kernel version 6.2.[26][25]

I/O

Die configurations

Sapphire Rapids come in two varieties: the low-core-count variety uses a single die (MCC), and the high-core-count variety uses multiple dies on a single package (XCC).

XCC multi-die configuration

  • Multi-chiplet chip with four tiles linked by 2.5D Embedded Multi-die Interconnect Bridges. Each tile is a 400mm2 system on a chip, providing both compute cores and I/O.[29]
    • Each tile contains 15 Golden Cove cores, and a single UPI link
    • Each tile's memory controller provides two channels of DDR5 ECC supporting 4 DIMMs (2 per channel) and 1 TB of memory with a maximum of 8 channels, 16 DIMMs, and 4 TB memory across 4 tiles[30]
    • A tile provides up to 32 PCIe 5.0 lanes, but one of the eight PCIe controllers of a CPU is usually reserved for DMI, resulting in a maximum of 112 non-chipset lanes. This maximum is only reached in the W-3400 series processors, while the server processors have 80 (20 per tile).[31]

List of Sapphire Rapids processors

Sapphire Rapids-HBM (High Bandwidth Memory/Xeon Max Series)

Xeon Max processors contain 64 GB of High Bandwidth Memory.

More information Model number, Cores (threads) ...

Sapphire Rapids-SP (Scalable Performance)

With its maximum of 60 cores, Sapphire Rapids-SP competes with AMD's Epyc 8004/9004 Genoa with up to 96 cores and Bergamo with up to 128 cores. Sapphire Rapids Xeon server processors are scalable from single-socket configurations up to 8 socket configurations.[32][33]

Suffixes to denote:[34]

  • +: Includes 1 of each of the four accelerators: DSA, IAA, QAT, DLB
  • H: Database and analytics workloads, supports 4S (Xeon Gold) and/or 8S (Xeon Platinum) configurations and includes all of the accelerators
  • M: Media transcode workloads
  • N: Network/5G/Edge workloads (High TPT/Low Latency), some are uniprocessor
  • P: Cloud and infrastructure as a service (IaaS) workloads
  • Q: Liquid cooling
  • S: Storage & Hyper-converged infrastructure (HCI) workloads
  • T: Long-life use/High thermal case
  • U: Uniprocessor (some workload-specific SKUs may also be uniprocessor)
  • V: Optimized for cloud and software as a service (SaaS) workloads, some are uniprocessor
  • Y: Speed Select Technology-Performance Profile (SST-PP) enabled (some workload-specific SKUs may also support SST-PP)
  • Y+: Speed Select Technology-Performance Profile (SST-PP) enabled and includes 1 of each of the accelerators.
More information Model number, Cores (threads) ...

Sapphire Rapids-WS (Workstation)

With its maximum of 56 cores, Sapphire Rapids-WS competes with AMD's Threadripper PRO 5000WX Chagall with up to 64 cores.[35] Like Intel's Core product segmentation into i3, i5, i7 and i9, Sapphire Rapids-WS is labeled Xeon w3, w5, w7 and w9.[36] Sapphire Rapids-WS was unveiled in February 2023, and was made available for OEMs in March.[37][38] CPUs with "X" suffix have its multiplier unlocked for overclocking.[39]

  • No suffix letter: Locked clock multiplier
  • X: Unlocked clock multiplier (adjustable with no ratio limit)
  • Xeon W-2400 uses a monolithic design and supports up to 64 PCI Express 5.0 lanes, while Xeon W-3400 uses a multi-chip module design and supports up to 112 lanes. Both support 8 DMI 4.0 lanes.
More information Model, Cores (threads) ...

See also


References

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  2. Mujtaba, Hassan (October 14, 2019). "Intel Sapphire Rapids & Granite Rapids Xeons Are LGA 4677 Compatible". Wccftech. Retrieved March 14, 2020.
  3. Cutress, Ian (February 17, 2022). "Intel Discloses Multi-Generation Xeon Scalable Roadmap: New E-Core Only Xeons in 2024". AnandTech. Retrieved February 17, 2022.
  4. Shilov, Anton (October 27, 2020). "Intel: Alder Lake Sampling, Sapphire Rapids Samples in Q4". Tom's Hardware. Retrieved November 10, 2022.
  5. Mujtaba, Hassan (May 21, 2019). "Intel Xeon Roadmap Leak, 10nm Ice Lake, Sapphire Rapids CPU Detailed". Wccftech. Retrieved March 14, 2020.
  6. Alcorn, Paul (June 29, 2021). "Intel's Sapphire Rapids Roadmap Slips: Enters Production in 2022". Tom's Hardware. Retrieved June 30, 2021.
  7. Russell, John (November 17, 2019). "Intel Debuts New GPU – Ponte Vecchio – and Outlines Aspirations for oneAPI". HPC Wire. Retrieved November 18, 2019.
  8. Patel, Nilay (October 4, 2022). "Pat Gelsinger came back to turn Intel around — here's how it's going". The Verge. Retrieved November 10, 2022.
  9. Schor, David (May 21, 2019). "Leaked Intel Server Roadmap Shows Sapphire Rapids With DDR5/PCIe 5.0 For 2021, Granite Rapids For 2022". WikiChip Fuse. Retrieved November 29, 2022.
  10. Intel Technology (August 19, 2021). "Sapphire Rapids – Architecture Day 2021 | Intel Technology". YouTube. Retrieved November 29, 2022.
  11. Wheatley, Mike (November 1, 2022). "Intel's Sapphire Rapids server chips face yet more delays, with AMD set to benefit". Silicon Angle. Retrieved November 19, 2022.
  12. Cutress, Ian (June 29, 2021). "Update on Intel Sapphire Rapids in 2022: Q1 for Production, Q2 for Ramp, H1 Launch". AnandTech. Retrieved November 10, 2022.
  13. Cunningham, Andrew (November 2, 2022). "Intel's oft-delayed "Sapphire Rapids" Xeon CPUs are finally coming in early 2023". Ars Technica. Retrieved November 10, 2022.
  14. Shilov, Anton (November 2, 2022). "Intel's Sapphire Rapids Formal Launch Date Revealed". Tom's Hardware. Retrieved November 10, 2022.
  15. "4th Gen Intel Xeon Sprints into the Market". Intel. Retrieved April 2, 2023.
  16. Cutress, Ian (August 31, 2021). "Intel Xeon Sapphire Rapids: How To Go Monolithic with Tiles". AnandTech. Retrieved November 10, 2022.
  17. Shah, Agam (April 25, 2023). "Intel's TDX Goes Through the Grind Ahead of Mass Release to Cloud". EnterpriseAI. Retrieved May 29, 2023.
  18. Larabel, Michael (December 16, 2022). "Intel IFS Ready To Weed Out Faulty Silicon With Linux 6.2". Phoronix. Retrieved January 13, 2023.
  19. Jiang, Dave (November 20, 2019). "Introducing the Intel® Data Streaming Accelerator (Intel® DSA)". 01 Intel Open Source. Retrieved November 10, 2022.
  20. Larabel, Michael (January 13, 2023). "Setting Up Intel 4th Gen Xeon Scalable "Sapphire Rapids" For Accelerator Use". Phoronix. Retrieved January 13, 2023.
  21. Larabel, Michael (November 23, 2022). "Intel Details The Accelerators & Security Features For On Demand / Software Defined Silicon". Phoronix. Retrieved January 13, 2023.
  22. Shilov, Anton (December 30, 2020). "Intel Confirms On-Package HBM Memory Support for Sapphire Rapids". Tom's Hardware. Retrieved January 1, 2021.
  23. Cutress, Ian (November 15, 2021). "Intel: Sapphire Rapids With 64 GB of HBM2e, Ponte Vecchio with 408 MB L2 Cache". AnandTech. Retrieved November 10, 2022.
  24. Tyson, Mark (August 19, 2021). "Intel Sapphire Rapids utillises tiled, modular SoC architecture". Hexus. Retrieved November 19, 2022.
  25. "Intel "Sapphire Rapids" Xeon 4-tile MCM Annotated". TechPowerUp. February 21, 2022. Retrieved November 19, 2022.
  26. Kennedy, Patrick (February 15, 2023). "New Workstation Kingpins Intel Xeon W-3400 Xeon W-2400 and W790 Launch". ServeTheHome.
  27. Robinson, Cliff (October 6, 2022). "Intel Xeon Sapphire Rapids to Scale to 4 and 8 Sockets". ServeTheHome. Retrieved November 27, 2022.
  28. "Intel 4th Gen Xeon Scalable "Sapphire Rapids" Server Processors Launch in January". TechPowerUp. November 2, 2022. Retrieved November 27, 2022.
  29. "Intel Xeon Scalable Processor Reference for Lenovo ThinkSystem Servers". Lenovo Press. Lenovo. January 19, 2024. Retrieved February 23, 2024.
  30. Liu, Zhiye (July 23, 2022). "Intel Sapphire Rapids Workstation Specs Leaked: Up To 56 Cores, 350W TDP". Tom's Hardware. Retrieved November 24, 2022.
  31. Chiappetta, Marco (February 16, 2023). "New Intel Xeon W Processors Offer Massive Performance Boosts For High-End Desktops And Workstations". Forbes. Retrieved February 16, 2023.
  32. Alcorn, Paul (February 15, 2023). "Intel Launches Overclockable Xeon W CPUs up to 56 Cores: a Return to HEDT-Class Chips". Tom's Hardware. Retrieved February 16, 2023.

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