# Merchant GPUs / accelerators

Part ID: 1.01 · Layer 1 (Compute silicon & packaging)

GPUs and other accelerator chips designed by merchant vendors and sold to any buyer, rather than designed in-house by a single hyperscaler; the workhorse silicon for AI training and inference.

Merchant accelerators are the chips that do the actual matrix math in AI training and inference — bought off a price list (allocation permitting) rather than designed for one company's fleet alone. They sit downstream of foundry (the advanced-node foundry step) and advanced packaging, which combine the compute die with HBM stacks onto a substrate, and upstream of the server board and tray assembly in Layer 4, where they're paired with server CPUs, NICs, and cooling. Because merchant GPUs are sold to every buyer from a single enterprise pilot through a gigawatt-class campus, this is the part of the catalog investors search first when asking who benefits from AI buildouts.
An investor should watch supplier concentration — a small number of vendors set the pace for each new architecture generation — alongside qualification cycles, since a new generation typically requires re-validation across the software stack, board designs, and cooling before hyperscalers will deploy it at scale. Pricing has moved less on open competition than on allocation: demand has outrun available packaging and wafer capacity for multiple generations running, which has kept lead times elongated and kept the vendors that can secure capacity in a stronger negotiating position than a normal semiconductor upcycle would imply.

**AI delta:** AI training and inference workloads are the primary demand driver for merchant accelerators, which is why unit volumes and generational upgrade cadence have both accelerated well beyond a typical chip replacement cycle.

## Companies

| Company | Role | Confidence | Ownership | Ticker | Note |
|---|---|---|---|---|---|
| AMD | manufacturer | inferred | public | AMD | Instinct MI350/MI400 |
| Intel | manufacturer | inferred | public | INTC | Gaudi 3 |
| Nvidia | manufacturer | inferred | public | NVDA | Blackwell Ultra |

Confidence tags: disclosed = company/filing statement; reported = trade press or partner list; inferred = taxonomy lead.