Micron’s HBM3E is a form of DRAM, so an AI-memory-versus-DRAM revenue comparison needs clearly defined, non-overlapping categories. The fiscal Q3 2026 release does not establish the crossover in this headline. It reports company and business-unit results, while Micron’s product disclosures distinguish HBM3E from the newer HBM4 generation.
Did Micron report an AI-memory revenue crossover in Q3 2026?
Micron Technology, Inc. reported fiscal Q3 2026 results on June 24, 2026, for the quarter ended May 28, 2026; that reporting period is not calendar Q3.
The earnings release lists company and business-unit financial results, not a separate AI-memory revenue line showing a crossover above conventional DRAM.
[VERIFY: Which Micron disclosure defines non-overlapping AI-memory and conventional-DRAM revenue categories and demonstrates the claimed crossover, and does Q3 2026 mean the fiscal quarter ended May 28 or calendar July through September?]
Is HBM3E different from DRAM?
Micron defines HBM as a specialized, high-performance 3D-stacked SDRAM architecture: multiple DRAM dies are stacked vertically and connected through through-silicon vias and microbumps.
HBM and traditional DDR5 use different interface architectures, but HBM is not outside the DRAM family; Micron describes DDR5’s narrower bus and HBM’s parallelized, wide interface.
When did Micron start HBM3E volume production?
Micron announced HBM3E volume production on February 26, 2024, identifying its 24GB 8H product for NVIDIA H200 Tensor Core GPUs scheduled to begin shipping in calendar Q2 2024.
That launch disclosure specified pin speed greater than 9.2 Gb/s and memory bandwidth greater than 1.2 TB/s for Micron’s HBM3E solution; those are product specifications, not reported factory throughput or revenue shares.
What did Micron actually report for fiscal Q3 2026?
Micron reported fiscal Q3 revenue of $41,456 million, compared with $23,860 million in fiscal Q2 2026 and $9,301 million in fiscal Q3 2025.
The following figures reproduce Micron’s reported company and business-unit revenue in US dollars, millions; they are not a standalone HBM3E revenue breakdown.
| Reported category | Fiscal Q3 2026 | Fiscal Q2 2026 | Fiscal Q3 2025 |
|---|---|---|---|
| Company total | 41,456 | 23,860 | 9,301 |
| Cloud Memory Business Unit | 13,769 | 7,749 | 3,386 |
| Core Data Center Business Unit | 11,524 | 5,687 | 1,530 |
| Mobile and Client Business Unit | 11,521 | 7,711 | 3,255 |
| Automotive and Embedded Business Unit | 4,634 | 2,708 | 1,127 |
Company-wide GAAP gross margin was 84.6%, versus 74.4% in fiscal Q2 2026 and 37.7% in fiscal Q3 2025; those consolidated percentages are not HBM-specific margins.
What changed in Micron's HBM product roadmap?
The June 24 release said HBM4, built on 1-beta DRAM technology, was in high-volume shipments for Micron’s lead customer’s platform, with qualification samples shipped to multiple end-customers.
Micron said HBM4E development on 1-gamma DRAM technology was underway and expected volume production in calendar 2027; this was a forward-looking production expectation, not a reported 2027 result.
What can investors infer from the reported figures?
Micron’s June 24 outlook put fiscal Q4 2026 revenue at $50.0 billion plus or minus $1.0 billion; it was guidance, distinct from the reported fiscal Q3 revenue of $41.46 billion.
Micron cautioned that its forward-looking statements were subject to risks and uncertainties and that it could not guarantee future results; the release does not turn a production roadmap into a guaranteed HBM margin or investment return.
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