GPU Dispatch · 2026-W38

No new NVIDIA silicon this week; the week's NVIDIA news was capital, not chips

NVDA ecosystem — weekly dispatch (2026-W38)

### Material change this week

None on NVIDIA silicon. No SKU launch and no datasheet revision on tracked NVIDIA products. Re-checked this run:

• H200 SXM — 141 GB HBM3e, 4.8 TB/s, up to 700 W configurable. Unchanged.
• HGX B200 / B300 — 1.4 TB and 2.1 TB total system memory. Unchanged.

Catalog unchanged.

### Context from NVIDIA's HGX page

NVIDIA's HGX page now leads with Rubin: 288 GB HBM4 and 22 TB/s per GPU, and 2.3 TB HBM4 / 176 TB/s per 8-GPU HGX Rubin NVL8 and Vera Rubin NVL8 system. Rubin is not in `gpu_products`; it stays in briefs until it is catalogued.

### Capital moves — see the event log

This week's NVIDIA items are structural, not silicon, and are recorded as events under Market moves: the Hugging Face acquisition (announced 2026-09-03, not closed), reported talks on a Thinking Machines Lab investment, and reported talks on anchoring Anthropic's IPO. The last two are rumored. None changes a spec.

### Supply chain

Reported changes to HBM supply — Micron's capacity expansion and Samsung's long-term agreements — are in the event log under Supply chain.

One operational item that is not an event: Micron's two Taiwan unions (about 10,000 members) reported about 80% support for strike action in a preliminary survey over bonus terms. Mediation was scheduled for late August and mid-September; no work stoppage has been reported.

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Technical research for informational purposes only. Not financial advice. No investment recommendations. Specs sourced from vendor documentation; verify before engineering or procurement decisions.

Quiet silicon week. HBM allocation, not GPU design, is still what paces Rubin and Blackwell Ultra fleet growth. The Micron Taiwan labor dispute is the near-term operational risk to watch, since Micron is one of the three merchant HBM suppliers.

No new rival SKU this week; Enflame lists in Shanghai and Google sizes its TPU business

Rivals — weekly dispatch (2026-W38)

### AMD — no catalog change

No new Instinct launch or catalog SKU. Helios (72x MI455X, 432 GB HBM4 per GPU) remains inside AMD's stated end-of-Q3 2026 shipping window. Q3 closes Sep 30. MI455X is still not in `gpu_products`; the catalog baseline stays MI355X (288 GB HBM3E, 8 TB/s, 1400 W, OAM). The MI355X vendor page did not load during this run, so its specs were carried from the catalog rather than re-verified.

### Huawei Ascend — no change

No new Ascend availability announcement found this week. Ascend 910B / 910C remain the catalogued parts.

### China accelerators — Enflame lists

Enflame, one of China's four so-called GPU dragons alongside Cambricon, MetaX and Moore Threads, debuted on Shanghai's STAR Market on 2026-09-11. It raised 6.12B yuan (about $912M) at 142.18 yuan per share and closed about 179% above the offer price. Proceeds are earmarked for R&D and industrialization of its 5th- and 6th-generation AI training and inference chips. Tencent is its lead strategic backer. This is a capital event, not a product; no Enflame part is catalogued.

### Custom silicon — Google TPU

At Goldman Sachs Communacopia on 2026-09-08, Google Cloud's Thomas Kurian said the TPU business is more than twice the size of the next-largest hyperscaler's. Google now sells TPUs three ways: cloud rental in its own facilities, TPU systems deployed in customer data centers (Anthropic named), and through a Blackstone joint venture. This is a vendor claim, not an independent measure.

### Memory

CXMT's reported start of small-batch HBM3E production is in the event log under Supply chain and Competitors.

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Technical research for informational purposes only. Not financial advice. No investment recommendations. Specs sourced from vendor documentation; verify before engineering or procurement decisions.

Rivalry narrative unchanged on silicon. What moved is who sells accelerators and how they are funded: Google now ships TPU systems into customer data centers, and China's domestic GPU makers are raising public capital for next-generation parts. Neither changes a catalog spec this week.