Micron HBM3E 36GB

Micron’s twelve-high HBM3E is designed into NVIDIA Blackwell Ultra and AMD MI355X platforms.

Production reported · evidence dated 2025-06-25 · verified 2026-11-11

Read maker evidenceCompare these stacksAll HBM3E

Stack specifications

MakerMemory manufacturer.
Micron1
GenerationMaker’s HBM generation designation.
HBM3E1
DRAM layers highDRAM dies in the stack; excludes the base die.
121
Stack capacity GBCapacity of one stack, in the maker’s GB units; not accelerator total memory.
361
Pin rate Gb/sPublished pin rate. Read with Pin qualifier; a limit is not a guaranteed operating point.
Over 9.21
Stack bandwidth GB/sPublished bandwidth of one stack. Read with Bandwidth qualifier. TB/s is normalized to GB/s using 1,000.
Over 1,2001
Interface bitsData I/O width of one stack; not the complete accelerator bus.
1,0241
Base diePublished base/buffer die implementation or foundry. Null means not disclosed in the cited evidence.
Not published
DRAM processVendor’s process label, not a normalized physical dimension.
Not published
Bonding / packagePublished stacking or package process.
Not published
Evidence statusLast supported milestone; historical production does not imply current orderability.
Production reported3
Status evidence dateDate of the supporting publication, with original precision (YYYY, YYYY-MM or YYYY-MM-DD). Not necessarily the first shipment day.
2025-06-253
Sample evidence datePublication confirming samples, preserving date precision; not an inferred qualification date.
Not published
Production evidence datePublication confirming production or shipments. A report date, not an exact factory ramp date.
2025-06-253
Confirmed platform linksPlatforms explicitly linked to this maker and variant by a first-party source. Design-in is distinguished from shipping.
NVIDIA B300 / GB300 (design-in); AMD Instinct MI355X (design-in)2
Reading notesVariant-specific context, source conflicts, historical status and unconfirmed details.
Vendor lower bounds are preserved. Micron first reported 12-high volume production on its 20 March 2025 earnings call; the cited first-party remarks from 25 June 2025 repeat it alongside the MI355X design-in.1

Source record

  1. Micron: Micron HBM3E 36GB accessed 2026-11-11
  2. Micron: HBM3E platform design-ins accessed 2026-11-11
  3. Micron HBM3E production evidence accessed 2026-11-11
  4. Micron FQ3 2025: MI355X and HBM3E volume ramp accessed 2026-11-11

Every date is the publication date of the maker’s evidence. See who packages, bonds and tests Micron HBM on HBM Suppliers. Read the method or send a correction.

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