🔥36氪•Stalecollected in 12m
Samsung Boosts DRAM Size for HBM4 Gains
💡Samsung HBM4 advances threaten SK Hynix monopoly in AI accelerators
⚡ 30-Second TL;DR
What Changed
Enlarging 6th-gen 10nm-class DRAM chip size
Why It Matters
Challenges SK Hynix in AI GPU memory supply, potentially stabilizing HBM pricing for large-scale training.
What To Do Next
Benchmark Samsung HBM4 prototypes against HBM3e for next AI cluster memory planning.
Who should care:Developers & AI Engineers
🧠 Deep Insight
Web-grounded analysis with 5 cited sources.
🔑 Enhanced Key Takeaways
- •Samsung began commercial shipments of HBM4 in February 2026, becoming the first global supplier to deliver the next-generation AI memory chip.
- •Samsung reclaimed the No. 1 position in the global DRAM market in Q4 2025 with $19.156 billion in sales and 36.6% market share, surpassing SK Hynix.
- •SK Hynix leads in HBM4 production yields and is expected to capture 50% of total HBM4 supply volume compared to Samsung's 20%.
- •Samsung's HBM4 supports speeds up to 13Gbps per second and is slated for supply to Nvidia starting in 2026.
📊 Competitor Analysis▸ Show
| Company | Q4 2025 DRAM Sales | Market Share | HBM4 Position |
|---|---|---|---|
| Samsung | $19.16B | 36.6% | First to ship (Feb 2026), 20% volume |
| SK Hynix | $17.23B | 32.9% | Q1 2026 supply start, 50% volume lead |
| Micron | N/A | 22.9% | Expanding capacity, HBM4 sold out 2026 |
| CXMT | N/A | 4.7% | Minor presence |
🛠️ Technical Deep Dive
- •Samsung's HBM4 achieves data transfer speeds of up to 13Gbps per pin.
- •HBM4 represents sixth-generation high-bandwidth memory designed for advanced AI accelerators and hyperscale data centers.
🔮 Future ImplicationsAI analysis grounded in cited sources
Samsung targets 30% higher HBM4 prices than HBM3E
Exploding AI demand and sold-out 2026 capacity enable Samsung to upend pricing amid 170%+ DRAM contract price increases.
SK Hynix maintains HBM4 supply dominance
Superior production yields position SK Hynix to secure 50% of HBM4 volume despite Samsung's shipment lead.
DRAM market leadership shifts intensify by end-2026
Stabilizing prices and HBM4E competition create an inflection point challenging Samsung's reclaimed top position.
⏳ Timeline
1992-01
Samsung begins maintaining No. 1 DRAM market leadership position
2024-01
Samsung loses DRAM top spot to SK Hynix for first time in 33 years due to HBM dominance
2025-10
Samsung achieves record Q4 DRAM revenue and reclaims No. 1 market share
2026-02
Samsung initiates world's first commercial HBM4 shipments
📎 Sources (5)
Factual claims are grounded in the sources below. Forward-looking analysis is AI-generated interpretation.
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Original source: 36氪 ↗