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What is HBM memory and which companies make it?

AlphaOS investment intelligence · Research and education only — not investment advice · Updated Jul 5, 2026

High Bandwidth Memory (HBM) is a high-performance RAM interface for 3D-stacked synchronous dynamic random-access memory (SDRAM) that offers significantly higher bandwidth and lower power consumption compared to traditional DDR memory, making it crucial for accelerating artificial intelligence (AI) and high-performance computing (HPC) workloads. HBM is manufactured by a select group of semiconductor companies, primarily SK Hynix, Samsung Electronics, and Micron Technology, with SK Hynix currently holding the largest market share in HBM3 and HBM3E production. These companies supply HBM to GPU and AI accelerator developers like NVIDIA, AMD, and Intel, which integrate it into their advanced processors.

Key Takeaways

  • HBM is a 3D-stacked memory technology providing superior bandwidth and power efficiency over traditional DRAM.
  • It is essential for AI accelerators and high-performance computing due to its ability to handle massive data throughput.
  • SK Hynix, Samsung Electronics, and Micron Technology are the primary manufacturers of HBM.
  • SK Hynix is the current market leader in advanced HBM generations, specifically HBM3 and HBM3E.
  • HBM is integrated into GPUs and AI chips from companies like NVIDIA, AMD, and Intel.
  • The demand for HBM is rapidly increasing, driven by the exponential growth in AI development and deployment.
  • HBM's compact form factor allows for closer integration with processing units, reducing latency and improving overall system performance.

Evidence & Analysis

  • SK Hynix announced in March 2024 that it began mass production of HBM3E, the fifth generation of HBM, for NVIDIA's AI processors.
  • TrendForce reported in Q1 2024 that SK Hynix holds approximately 53% of the HBM market share, followed by Samsung with 38% and Micron with 9%.
  • NVIDIA's H100 and upcoming B200 'Blackwell' GPUs heavily rely on HBM3 and HBM3E memory to achieve their high performance for AI workloads.
  • HBM offers up to 10 times the bandwidth of traditional DDR5 memory, with HBM3E capable of over 1.2 TB/s per stack.
  • The global HBM market is projected to grow from $2.5 billion in 2022 to over $15 billion by 2028, driven by AI demand (Yole Development, 2023).

Key Companies

000660.KS

SK Hynix Inc.

Leading manufacturer of HBM, particularly HBM3 and HBM3E, with significant market share.

005930.KS

Samsung Electronics Co., Ltd.

Major manufacturer of HBM, competing with SK Hynix and Micron.

MU

Micron Technology, Inc.

Producer of HBM, including HBM3E, and a key supplier in the memory market.

NVDA

NVIDIA Corporation

Primary beneficiary as a leading consumer of HBM for its AI GPUs, holding ~80% data center GPU market share.

AMD

Advanced Micro Devices, Inc.

Consumer of HBM for its AI accelerators and GPUs, competing in the AI chip market.

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Generated by AlphaOS from the Knowledge Graph, earnings intelligence, and industry analysis. Content is for research and education only — not investment advice.