MARKET INTELLIGENCE

Type: Technology Roadmap

In-depth insights, data-driven analysis and clear signals for the memory market.

Every record states its source and its collection date. A chart appears only where the underlying sample supports one.

Overview Supply & Demand 5 Price Trend 3 Market Report 2 Technology Roadmap 2 Forecast 0

Collected
Oct 26, 2026

Technology Roadmap Source & collection date on file

SK hynix DDR4 Dies: A Channel Buyer’s Guide to DJR, CJR and Downgraded Chips

SK hynix DDR4 dies fall into three tiers: top-bin DJR, mainstream CJR and downgraded B/C-bin material. Part numbers such as H5AN8G8NCJR-VKC encode the die revision and JEDEC speed grade, while tools like Thaiphoon Burner frequently misidentify them. Channel buyers should verify die revisions through part numbers and authorized supply, and stock DJR for performance lines, CJR for mainstream builds, and B/C-bin only for JEDEC-default fleets.

DRAM

Source: SK hynix, DDR4 SDRAM for PC — official product documentation: part-number nomenclature, speed grades and operating temperature for components such as H5AN8G8NCJR-VKC; Original Chinese channel guide (secondary source, provided by the client): tier structure, identification practice and stocking recommendations

Collected
Oct 15, 2026

Technology Roadmap Source & collection date on file

CXMT 4F² Server-DRAM Roadmap Reprices the Pricing Outlook; Samsung, SK hynix Slide

South Korea’s memory complex repriced sharply on 13 October, with SK hynix closing down 10.09% and Samsung Electronics 7.39% after a Chinese memory maker’s roadmap for 4F²-based server DDR5 reached the market. For buyers, it signals a shorter expected runway for incumbent pricing power than most 2027 models assumed.

DRAM

Source: [1] The Korea Herald — "Foreign selloff sends Kospi down 5.5% as chip giants tumble" — Published 2026-10-13 16:21 (KST); [2] SBS (English) — "SK Hynix Plunges 10% to Close at 1.43 Million Won, Samsung Electronics Down 7.4%" — Published 2026-10-13 16:08 (KST); [3] TrendForce — "CXMT Accelerates 4F² DRAM Push, Eyes Year-End Server DDR5 RDIMM Launch" — Published 2026-10-12 (TPE); [4] Morningstar — "Samsung and SK Hynix Lead Chip Selloff as China Competition Fears Grow" — Published 2026-10-13 (UTC); [5] TechPowerUp / Counterpoint Research — "CXMT Captures 10% of the Global DRAM Market Revenue Share" — Published 2026-09-03 19:45 (UTC)

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