SK Hynix 96GB DDR5-8000 RDIMM ECC Registered Server Memory Module HMCGM4AMBRB

Brand: SK Hynix | Category: Memory (RAM)

SKU: HMCGM4AMBRB | Part #: HMCGM4AMBRB | MPN: HMCGM4AMBRB

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Product Overview

The SK Hynix 96GB DDR5-8000 RDIMM (Registered Dual Inline Memory Module) represents the cutting edge of server memory technology, purpose-built for the most demanding enterprise, AI, and high-performance computing environments available today. Operating at a blistering 8000 MT/s data transfer rate, this module delivers unprecedented memory bandwidth to feed modern multi-core processors and accelerator-heavy workloads that are increasingly at the heart of data centre operations across the GCC and worldwide.

As AI inference and training pipelines, large-scale virtualisation, in-memory databases, and real-time analytics platforms continue to scale, the memory subsystem has become a primary bottleneck. SK Hynix's 96GB DDR5-8000 RDIMM directly addresses this challenge by combining massive per-DIMM capacity with extreme bandwidth, reducing the number of modules required per server while simultaneously increasing system throughput. This makes it an exceptionally efficient choice from both a performance and total-cost-of-ownership perspective.

With Error Correcting Code (ECC) reliability and full registration via an RCD (Registering Clock Driver), this RDIMM is designed for continuous 24/7 enterprise operation, meeting the resilience and uptime requirements of mission-critical server platforms. Whether deployed in a hyperscale cloud node, a Tier-1 enterprise rack, or an AI training cluster, this module delivers the stability and performance that modern infrastructure demands.

Key Features & Benefits

• Extreme Bandwidth at DDR5-8000: Operating at 8000 MT/s, this module delivers up to 64 GB/s of memory bandwidth per channel, enabling CPU and GPU-adjacent workloads to maintain full data throughput without memory starvation.
• 96GB High-Capacity Density: A single DIMM carrying 96GB significantly reduces slot utilisation while maximising total system memory, allowing more memory capacity per server node without fully populating all available DIMM slots.
• Registered (RDIMM) Architecture: The registered design uses an on-DIMM RCD to buffer command and address signals, enabling higher DIMM counts per channel and improved electrical stability critical for multi-socket enterprise server platforms.
• ECC Error Correction: On-die and system-level ECC continuously scrubs and corrects single-bit errors, dramatically reducing the risk of silent data corruption in financial, healthcare, and scientific computing environments where data integrity is non-negotiable.
• DDR5 Power Efficiency: DDR5's native 1.1V operating voltage compared to DDR4's 1.2V translates to meaningful power savings at scale — an important consideration for GCC data centres where power and cooling costs are significant operational factors.
• Advanced On-Die ECC (ODECC): SK Hynix integrates On-Die ECC within the DRAM die itself, catching errors before they propagate to the memory bus, providing an additional layer of data integrity that complements system-level ECC.
• Wide Temperature Stability: Engineered to operate reliably across the full enterprise temperature range, ensuring consistent performance in high-density rack deployments where thermal environments can be challenging.
• Premium SK Hynix DRAM Dies: Manufactured using SK Hynix's latest advanced DRAM process node, ensuring tight manufacturing tolerances, low latency variance, and long-term reliability across the module's operational lifetime.

Technical Architecture

The HMCGM4AMBRB is built around SK Hynix's advanced DDR5 DRAM dies organised in a high-density configuration to achieve the 96GB capacity target. The module employs a 72-bit wide data bus (64-bit data + 8-bit ECC) in the standard RDIMM form factor, presented on a 288-pin edge connector compatible with DDR5 server platforms.

Central to the RDIMM architecture is the Registering Clock Driver (RCD), which buffers the command, address, and clock signals from the memory controller before distributing them to the DRAM devices on the module. This buffering reduces the electrical load seen by the CPU's memory controller, enabling support for higher DIMM counts per channel and longer trace lengths within server motherboard designs — a critical enabler for high-memory-capacity server configurations.

DDR5's architectural improvements over DDR4 include a doubling of internal banks (from 16 to 32 banks per die), independent sub-channel operation (two 32-bit sub-channels per DIMM), and improved burst length and prefetch mechanisms. These architectural changes collectively enable the DDR5-8000 speed grade to sustain real-world bandwidth figures that significantly exceed what was achievable with DDR4 at any speed grade.

The module also incorporates a Serial Presence Detect (SPD) hub with enhanced capabilities defined by the JEDEC DDR5 standard, allowing the server BIOS to accurately read module parameters, timing configurations, and training data to achieve optimal and stable operation at the rated 8000 MT/s speed.

Performance & Capacity

At DDR5-8000 speed grade, the HMCGM4AMBRB is capable of delivering approximately 64 GB/s of theoretical peak bandwidth per DIMM slot. In a dual-channel configuration — standard for most modern server sockets — this scales to 128 GB/s per processor, and in multi-socket platforms with four or eight memory channels, aggregate system bandwidth can reach extraordinary levels suited to the most data-intensive workloads.

The 96GB per-DIMM capacity means a standard two-socket server with 16 DIMM slots can be configured with up to 1.5TB of total system memory using this module, providing ample capacity for large in-memory databases, expansive VM estates, or AI model inference contexts that require large memory footprints to maintain model data and intermediate activations in DRAM.

Latency characteristics at DDR5-8000 remain competitive, with CAS latency timings typical of high-speed DDR5 operation. While absolute latency in nanoseconds is slightly higher than DDR4 at lower clock rates, the dramatically higher bandwidth means that bandwidth-bound workloads — which represent the majority of AI, HPC, and analytics use cases — benefit enormously from the upgrade.

Compatibility & Integration

The SK Hynix HMCGM4AMBRB RDIMM is designed for compatibility with next-generation server platforms from major OEM vendors that support DDR5-8000 registered memory. Supported platforms include servers based on Intel Xeon Scalable (Granite Rapids and successor generations), AMD EPYC (Zen 5 and beyond), and Arm-based server SoCs with DDR5 memory controllers operating at speeds up to 8000 MT/s.

• JEDEC DDR5 RDIMM standard compliant
• Compatible with Intel Xeon Scalable (6th Gen and later) platforms
• Compatible with AMD EPYC Zen 5 series server platforms
• 288-pin DDR5 RDIMM form factor — not backward compatible with DDR4 slots
• Operates at 1.1V nominal VDD/VDDQ
• Supports XMP/EXPO profiles where platform BIOS enables them
• RoHS compliant for environmental regulatory requirements across the EU, UAE, and GCC markets

Ideal Use Cases

The 96GB DDR5-8000 RDIMM is purpose-designed for scenarios where both memory capacity and bandwidth are simultaneously critical. Below are key deployment environments where this module delivers maximum value:

• AI & Machine Learning Training: Large language model (LLM) training and fine-tuning require continuous, high-bandwidth data feeds from DRAM to GPU compute clusters. This RDIMM maximises the CPU-side memory bandwidth available to feed NVLink or PCIe-attached accelerators without creating a DRAM bottleneck.
• AI Inference at Scale: Inference servers hosting large transformer models benefit from high-capacity, high-bandwidth memory to keep model weights resident in DRAM, reducing latency associated with weight paging and enabling higher concurrent request throughput.
• High-Density Virtual Machine Hosting: Cloud service providers and enterprise virtualisation platforms running hundreds of VMs per host require maximum DIMM capacity. The 96GB density allows fewer DIMMs to deliver the same total capacity, preserving slots for future expansion.
• In-Memory Database & OLAP Analytics: Platforms such as SAP HANA, Oracle TimesTen, Redis, and Apache Spark operating in memory-intensive modes require both large DRAM pools and high bandwidth to service parallel query threads — exactly the profile this RDIMM addresses.
• High-Performance Computing (HPC) & Simulation: Scientific simulation, computational fluid dynamics (CFD), finite element analysis (FEA), and genomics workloads are characterised by irregular, bandwidth-hungry memory access patterns that benefit directly from the 64 GB/s per-DIMM bandwidth ceiling.
• Real-Time Financial Analytics & Risk Modelling: Trading platforms and risk calculation engines that process enormous datasets in-memory require reliable, high-bandwidth DRAM with ECC protection to ensure calculation integrity across every transaction.
• Hyperscale Cloud Infrastructure: Hyperscale and colocation operators deploying high-density server nodes require memory modules that maximise capacity per rack unit while maintaining the reliability guarantees of registered ECC memory — a role the HMCGM4AMBRB is specifically engineered to fulfil.

Why Buy from Omnixon

Omnixon Global is a trusted B2B IT hardware distributor headquartered in Dubai, UAE, serving enterprise clients, system integrators, and data centre operators across the GCC region and internationally. Our inventory of premium server memory modules — including the SK Hynix DDR5 RDIMM range — is stocked locally in Dubai, enabling rapid fulfilment to clients in the UAE, Saudi Arabia, Qatar, Kuwait, Bahrain, Oman, and beyond without the delays associated with cross-continental sourcing.

Our enterprise sales team brings deep technical expertise in server memory configurations, platform compatibility validation, and procurement optimisation for large-scale deployments. Whether you are refreshing a single server or equipping an entire data centre build-out, Omnixon provides the product knowledge, logistics capability, and account support required to execute complex hardware procurement efficiently and with confidence. All products supplied by Omnixon are brand new and sourced through authorised supply channels, ensuring authenticity and full traceability for enterprise procurement compliance requirements.

Related Products & Ecosystem

To build a complete, high-performance server memory ecosystem, consider pairing the SK Hynix 96GB DDR5-8000 RDIMM with complementary products available from Omnixon's catalogue. High-performance servers from Dell, HPE, Lenovo, and Supermicro that support DDR5-8000 memory platforms are available alongside this module. Enterprise SSDs — including NVMe U.2 and E1.S form factors — complement high-bandwidth DRAM deployments by ensuring storage I/O does not become the system bottleneck. NVIDIA GPU accelerators for AI and HPC workloads pair naturally with maximally configured DDR5 memory platforms. Additionally, enterprise-grade network adapters and high-speed transceivers ensure that the data pipeline from storage and network into memory and compute remains balanced across the full server architecture.