Who Rambus buys from and sells to
Sells DDR5 memory interface chips to module makers and licenses memory patents and silicon IP.
Buys from 0
None recorded
Sells to 3
- SK hynixSKHYDDR5 interface chips and a patent licence to 2034top five customers ~66% of 2025 revenue (10-K)
- Samsunginterface chips and a patent licence to 2033
- MicronMUinterface chips and a patent licence to 2029
Where the chain could break
- Three memory makers buy most of the chips and pay most of the royalties
- Top five customers were about 66% of 2025 revenue
Competes with
- Montage TechnologyDDR5 RCD and buffer chips
- RenesasRNECYmemory interface chips for server modules
Mapped by hand from filings and company reporting, as of October 2026. It shows the relationships that matter most, not every contract: most are never disclosed, and agreements change.