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NVIDIA's VR NVL72 System Features Cableless Design, Rubin GPUs

SemiAnalysis has provided a detailed breakdown of NVIDIA's upcoming VR NVL72 system, highlighting significant design changes from previous architectures like GB200. Key innovations include a cableless compute tray design, replacing traditional connectors with Paladin HD2 board-to-board connectors to improve reliability and reduce assembly time. The system utilizes Strata modules, each housing two Nvidia Rubin GPUs and a Vera CPU, with socketed LPDDR5X memory. AI

IMPACT This detailed analysis of NVIDIA's VR NVL72 system provides insights into the evolving hardware architecture for AI, potentially influencing future datacenter designs and component choices.

RANK_REASON Detailed technical breakdown of a new hardware system from a major manufacturer.

Read on X — SemiAnalysis →

AI-generated summary · Google Gemini · from 7 sources. How we write summaries →

NVIDIA's VR NVL72 System Features Cableless Design, Rubin GPUs

COVERAGE [7]

  1. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    We do a full breakdown of the BoM and power budget in the VR NVL72 Component BoM Model. It provides a system-level bill of materials and power budget analysis f

    We do a full breakdown of the BoM and power budget in the VR NVL72 Component BoM Model. It provides a system-level bill of materials and power budget analysis for the VR NVL72 system. 7/7🧵 https://t.co/4eZWlvDoYw

  2. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    The compute tray topology of VR NVL72 is roughly similar to that of GB200 and GB300, though there are some differences. 6/7🧵 https://t.co/8S8K3kONpu

    The compute tray topology of VR NVL72 is roughly similar to that of GB200 and GB300, though there are some differences. 6/7🧵 https://t.co/8S8K3kONpu

  3. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    Under the cableless design, all cable connector ports have been removed and replaced with Paladin HD2 board-to-board connectors on each module, which connect to

    Under the cableless design, all cable connector ports have been removed and replaced with Paladin HD2 board-to-board connectors on each module, which connect to a mini PCB intra-compute-tray midplane. 5/7🧵 https://t.co/akRTOXKIzj

  4. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    Unlike the GB architecture, the ConnectX NIC mezzanine module has also been moved off the Strata module. With CX-9, it has been relocated to the front of the ch

    Unlike the GB architecture, the ConnectX NIC mezzanine module has also been moved off the Strata module. With CX-9, it has been relocated to the front of the chassis and now sits on the Orchid module. For the reference design, there is also a front-end BlueField module. 4/7🧵 http…

  5. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    The main module in the VR compute tray, used in a quantity of two, is called the Strata module. In VR NVL72, it is the equivalent of the Bianca board in GB200/G

    The main module in the VR compute tray, used in a quantity of two, is called the Strata module. In VR NVL72, it is the equivalent of the Bianca board in GB200/GB300. It houses two Rubin GPUs and one Vera CPU. Unlike Bianca, the LPDDR5X memory for Vera is socketed via a SOCAMM htt…

  6. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    One of the major changes with VR NVL72 is in the compute tray. The redesigned compute tray eliminates cables, which have been a major point of failure in GB200/

    One of the major changes with VR NVL72 is in the compute tray. The redesigned compute tray eliminates cables, which have been a major point of failure in GB200/GB300 assemblies. NVIDIA claims this reduces compute tray assembly time from 2 hours on Blackwell to 5 minutes on Rubin.…

  7. X — SemiAnalysis TIER_1 English(EN) · SemiAnalysis_ ·

    Vera Rubin NVL72 is a beast, thanks to its extreme co-designed system architecture, and First At-Scale Production Token (FASPT) is fast approaching. Below, we b

    Vera Rubin NVL72 is a beast, thanks to its extreme co-designed system architecture, and First At-Scale Production Token (FASPT) is fast approaching. Below, we break down the architecture and some of the latest manufacturing innovations.👇️ 1/7🧵 https://t.co/efha4xzBQH