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Samsung’s HBM4 Dominates AI Market, Nvidia Seeks Supply

12/22/2025

26 2 Full Breakdown

Summary

Story summary

Samsung Electronics' HBM4 outperformed rivals in speed and power efficiency tests for Nvidia's Vera Rubin AI accelerator, with Nvidia requesting more supply.
Samsung plans to formalize supply contracts in Q1 2026, with deliveries starting in Q2 2026.
This follows a lag in HBM3E, and Samsung holds 22% of the HBM market as of Q3 2025, ranking No. 2.

History

Historical Context

The High Bandwidth Memory (HBM) standard, adopted in October 2013, marked a significant advancement in data processing, with the first HBM chip produced by SK Hynix in 2013. By Q3 2025, Samsung Electronics held 22% of the HBM market, reflecting the competitive landscape shaped by ongoing innovations like HBM4, which promises enhanced speed and efficiency, crucial for AI hardware development.

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Story summary

Samsung Electronics' HBM4 outperformed rivals in speed and power efficiency tests for Nvidia's Vera Rubin AI accelerator, with Nvidia requesting more supply.
Samsung plans to formalize supply contracts in Q1 2026, with deliveries starting in Q2 2026.
This follows a lag in HBM3E, and Samsung holds 22% of the HBM market as of Q3 2025, ranking No. 2.

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