HBM memory price — HBM3, HBM3E and HBM4 per stack

FAQ

How much does an HBM stack cost?

As of 1970-01-01, tracked HBM levels run from roughly the HBM3 24GB stack at the low end to HBM4 48GB at the high end — the exact figures, per stack and per GB, are in the tables above. HBM is sold on multi-quarter allocation rather than an open spot market, so these are indicative reference levels drawn from supply-chain reporting, not exchange prices.

What is the HBM3 price today?

The HBM3 24GB stack row above carries the current tracked level with its 30-day and year-over-year change. HBM3 is the previous-generation part now largely displaced by HBM3E in new accelerator builds, so its pricing tracks residual demand and remaining allocation rather than fresh contracts.

How much does HBM cost per GB versus normal RAM?

The per-GB table above divides each stack price by its capacity. HBM typically lands an order of magnitude above commodity DDR5 on a $/GB basis, because stacked dies, through-silicon vias and advanced packaging all add cost the mainstream part never pays.

Is there an HBM spot price?

Not in the way DDR5 has one. There is no broker board for HBM: supply is committed to accelerator makers in multi-quarter allocation blocks, so what circulates as an "HBM spot price" is really a reference level derived from supply-chain reporting and supplier disclosures. The levels above are flagged reported, derived or estimate so you can see which is which, and the closest thing to a live tradeable HBM proxy is GDDR6, which is quoted daily and shown in the same table.

What is the HBM memory cost per stack right now?

As of 1970-01-01 the tracked HBM memory cost runs from the HBM3 24GB stack at the low end through HBM3E 36GB to HBM4 48GB at the top, with the exact dollar figure, the per-GB equivalent and the 30-day change in the table above. Cost per accelerator is roughly the stack price multiplied by the number of stacks on the package — six to eight on current parts — which is why HBM is the single largest bill-of-materials line on an AI GPU after the logic die itself.

What is the HBM RAM price versus DDR5 RAM price?

The per-GB table above puts HBM RAM price and the DDR5 16Gb die on the same basis. HBM typically lands an order of magnitude higher per GB. Both come out of the same advanced DRAM wafer pool, which is why HBM allocation is the mechanism driving the DDR5 and DDR4 run-up rather than a separate story.

Is there an HBM memory price chart?

Yes. Every HBM row links to a dedicated chart running 30 days to 5 years, and the price explorer at the top of this page plots HBM3, HBM3E and HBM4 together — indexed or in absolute dollars — alongside DDR5 and GDDR6 so you can compare generations on one axis.

Why is HBM so expensive compared with DDR5?

HBM stacks DRAM dies vertically with through-silicon vias and requires advanced packaging next to the accelerator. Stacking yields are low, packaging capacity is constrained, and demand is effectively unlimited relative to supply.

Who makes HBM?

SK hynix, Samsung and Micron supply essentially all HBM going into Nvidia, AMD and hyperscaler accelerators. The manufacturer leaderboard ranks them by HBM share, bit share, revenue, backlog and capex.

How does HBM demand affect regular RAM prices?

HBM consumes roughly three times the wafer area per shipped bit versus commodity DDR5, so each wafer converted to HBM removes several times more mainstream bits from the market. That is the core mechanism behind the DDR5 and DDR4 price surge.

Will HBM prices come down?

Not while accelerator demand outruns packaging capacity. HBM4 pricing is set in allocation negotiations a year ahead, so the first sign of softening usually appears in the older generation — a sustained negative 30-day print on HBM3 before HBM3E or HBM4 move.