What Rambus makes for data centers
public
Rambus is a publicly listed company. It appears on 3 parts of the AI data center — ASIC design services, IP & EDA, Memory interface / buffer chips and CXL controllers & memory expanders — in the roles of service and manufacturer. Those parts sit in Layer 1 — Compute silicon & packaging and Layer 2 — Memory & storage. Its shares trade on US exchanges (NYSE/Nasdaq) as RMBS.
Listing
US exchanges (NYSE/Nasdaq): RMBS· 85.65 USD +0.75% · mkt cap 9.3B USD
Snapshot 2026-10-25T10:41:17Z — nightly, not real-time.· Chart on TradingView ↗
Exposure
3 parts across 2 layers
No disclosed data-center revenue share on file.
Parts, by layer
Layer 1 — Compute silicon & packaging
Layer 2 — Memory & storage
| Part | Role | Confidence | Competitors | Note |
|---|---|---|---|---|
| Memory interface / buffer chips | manufacturer | disclosed | Montage, Renesas | |
| CXL controllers & memory expanders | manufacturer | disclosed | Astera Labs, Marvell, Microchip, Micron, Montage, SK Hynix |
Where Rambus sits in the stack
Rambus's placements in this catalog cover 3 parts, from layer 1 (compute silicon & packaging) to layer 2 (memory & storage). None of them currently carries a sourced supply constraint tag. Across these parts it overlaps with other companies most often on the lines below.
What these parts are
- ASIC design services, IP & EDA — Outside firms and licensors — design-services houses, IP blocks, and EDA software — that hyperscalers and accelerator startups use to turn a chip specification into a manufacturable design.
- Memory interface / buffer chips — Small companion chips on a memory module that buffer and re-drive command, address, and data signals so many DRAM chips can be packed per module without losing signal integrity.
- CXL controllers & memory expanders — Chips that let a server attach an extra pool of DRAM over a CXL link rather than only through the CPU's own memory channels, expanding usable capacity beyond what fits in local DIMM slots.
Closest peers in this catalog
Disclosed customers
Questions about Rambus
- What does Rambus make for AI data centers?
- This catalog places Rambus on 3 parts: ASIC design services, IP & EDA (service), Memory interface / buffer chips (manufacturer) and CXL controllers & memory expanders (manufacturer).
- Is Rambus publicly traded?
- Yes — Rambus is listed on US exchanges (NYSE/Nasdaq) under RMBS. Prices shown on this page are a nightly snapshot, not real-time, and nothing here is investment advice.
- Who else makes ASIC design services, IP & EDA for AI data centers?
- Alchip, Arm, Broadcom, Cadence, Credo and Faraday are also placed on ASIC design services, IP & EDA in this catalog.
- How well sourced are these placements?
- Every part→company placement carries a confidence tag. For Rambus the mix is 2 disclosed and 1 inferred. "disclosed" means the company or a filing says so; "reported" comes from trade press or a reference-design list; "inferred" is a lead from the taxonomy with no citation yet. Treat reported and inferred as leads, not facts.
Answers are generated from this catalog's own rows — see sources & method.