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GDDR7
Technology
Memory
Graphics memory conscripted for cost-efficient inference.
You're looking at a technology record: a building block of AI hardware — what it does, who makes it, and which chips and systems use it.
GDDR7 trades HBM's bandwidth for dramatically lower cost and no advanced packaging. NVIDIA's Rubin CPX built a whole product philosophy on it: use cheap GDDR7 for the prefill phase of inference and save HBM for token generation.
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Record reviewed as of 2026-01-15 — see Methodology.