[2026 Hardware Market Analysis] Part 1. The RAM Price Explosion and the Butterfly Effect from Data Centers

 This article is the first installment of a five-part series titled “2026 In‑Depth Analysis of the Hardware Market.” As AI infrastructure competition intensified in 2025–2026, the global semiconductor supply chain shifted in ways no one predicted. The memory market in particular was upended within months, leaving everyone from PC users to enterprises reeling.

DDR5 prices, which had remained stable throughout 2025, surged starting in October, and a sudden spike in server memory demand drained supply for consumer lines. The ripple effects spread into the used market and even back to older standards like DDR4, producing an unprecedented “memory depression.”

In Part 1 i would analyze the tipping point of the RAM price surge, how expanded data center investment triggered the supply collapse, the cascading reactions between DDR4 and DDR5 markets, and the rapid rise of China’s CXMT—examining the key variables that shook the memory market in 2026.

Now,  open the first chapter of this five‑part series.

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1. A calm Q3 2025, then the October shock After ChatGPT’s arrival, the explosive AI demand was widely expected. Yet from Q1 through Q3 2025, PC memory prices remained surprisingly stable. Market participants believed AI data‑center demand had already been priced in and could be handled by existing production lines. That calm market collapsed completely after big tech companies’ Q3 earnings reports in October. Those companies abruptly raised their 2026 data‑center capex targets, triggering massive emergency orders for HBM and high‑capacity server RDIMMs that far exceeded expectations. Samsung and SK Hynix immediately had to cut consumer DDR5 production almost to a shutdown and urgently convert capacity to server products.

2. “Spinach RAM” 300% spike and a paralyzed DDR5 used market This supply cliff shows up in absurd numbers on domestic PC parts price trackers. Basic DDR5 16GB modules—once purchasable for around ₩70,000 in August 2025—soared after October and by February 2026 are listed at minimum prices of ₩330,000–₩350,000. That’s more than a 300% increase in half a year. New‑product price spikes destroyed the used market as well. A used DDR5 16GB module that could be found for around ₩50,000 in mid‑2025 now trades at ₩250,000–₩280,000—over a 400% rise. Where a 32GB dual‑channel kit could be built for ₩140,000 before, RAM alone now approaches ₩700,000—an unprecedented crash.

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3. Three‑stage DDR4 surge triggered by preemptive cuts Price moves for legacy DDR4 were even more dramatic and led the trend. Major Korean manufacturers preemptively cut DDR4 output—both to secure HBM lines and to avoid a price war with China’s CXMT—so DDR4 new‑product prices began rising as early as mid‑2025, pushing used prices up first. When the October DDR5 shock hit, demand that balked at new platforms flowed into DDR4 as a second wave. With major makers’ cuts leaving supply thin, exploding demand pushed both new and used DDR4 prices up in a three‑stage combo. Used DDR4 16GB modules that once circulated at ₩20,000–₩30,000 are now essentially gone from the market and sell at whatever price is asked.

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4. China’s CXMT closing in: stable DDR4 mass production and DDR5 yield gains The biggest variable shaking the global RAM supply chain is China’s Changxin Memory Technologies (CXMT). CXMT has pushed DDR4 19nm production yields above 90%, swallowing domestic legacy demand and flooding global markets with low‑cost supply. The core reason Korean firms rushed to convert DDR4 lines to HBM and DDR5 was CXMT’s DDR4 production stability. More threatening is CXMT’s DDR5 push. Its 17nm‑based DDR5, once criticized for poor yields, surpassed roughly 80% yield in H2 2025 and entered mass production. While Samsung and SK Hynix focused on profitable HBM and server products—leaving consumer DDR5 supply thin—CXMT began shipping high‑clock 8000Mbps DDR5 and LPDDR5X lines, aggressively occupying the mainstream gap.

[Part 1 Summary & Outlook] Big tech’s surprise capex hikes in October 2025 exploded server memory demand, cutting consumer DDR5 supply and—combined with manufacturers’ preemptive cuts—triggering a cascading price surge that even pushed DDR4 up. It’s unlikely major global manufacturers will restore consumer PC memory capacity before H2 2026. The only stabilizing factor is when CXMT’s 17nm DDR5 volumes hit global distribution. Until CXMT breaks the global price ceiling, the era of ₩700,000 RAM is likely to persist.

('₩' means korean won)

teaser: in [Part 2. SSD Market Seizure: The eSSD Black Hole and the Shackled Yangtze Memory (YMTC)], dissecting the causes of 1TB NVMe price spikes and the highly polarized SSD ecosystem.