Industry Insiders: HBM4 Prices Could Double by 2027
Miles Bennett
Next-gen AI memory HBM4 may rise from roughly $2/Gb in late 2026 to $4–5 or higher by 2027, driven by supply bottlenecks and a profit calculus that keeps pushing the price floor up.
Why could the price double?
HBM4 — high-bandwidth memory, an ultra-fast memory built specifically for AI chips — currently sits at about $2 per gigabit. Industry sources expect it to hit $4–5 or higher by 2027.
This means → the surge is not a simple supply-demand mismatch. Both sides are pulling prices up: AI demand is spiking while production capacity faces structural limits.
In plain terms = more buyers, not enough output — prices go up.
Where exactly is the capacity bottleneck?
HBM4 production takes four to six months per cycle, and early-stage yields are significantly low — far fewer usable chips per wafer than mature products.
Each HBM unit consumes roughly three times the wafer capacity of standard DDR5 DRAM, squeezing total memory output from the same fab.
This means → manufacturers are not choosing to under-produce. Every wafer used for HBM is a wafer not used for DDR5 — capacity is a zero-sum game.
Big buyers lock in supply — what about everyone else?
Samsung, SK Hynix, and Micron are signing three-to-five-year agreements with top-tier AI customers, locking up global memory supply.
DigiTimes projects that by 2027, roughly half of total global DRAM capacity will be tied up in long-term contracts, unavailable to smaller buyers.
This means → unsigned consumer-electronics makers face a risk of not getting supply at all — not just higher prices, but actual shortages.
DDR5 margins are so good they are pushing HBM prices higher?
The standard server memory market is running strong. Some suppliers have hit DDR5 margins above 80% this year.
This reflects an additional economic trade-off: HBM pricing needs to exceed DDR5's profit level before manufacturers will justify shifting production lines.
In plain terms = DDR5 is already a cash cow. HBM has to be an even better cash cow, or the lines stay where they are.
Nvidia's Rubin accelerates demand — when does supply catch up?
Nvidia's upcoming Rubin architecture is accelerating HBM4 development, but supply-chain sources say AI hardware will still face fundamental supply shortages through 2027.
Industry sources expect chip suppliers to hold a clear pricing advantage in contract negotiations through at least late 2026.
SK Hynix debuted on U.S. markets this week via American depositary receipts, raising a record $26.5 billion at a notable premium to its Seoul share price — a signal of sustained capital-market conviction in the AI memory story.
Content is for reference only, not financial advice.