Memory bandwidth debate: 1TB/s on paper may only deliver 256GB/s in practice
TheZachMueller · x · 2026-09-14
A technical discussion argues that paper memory bandwidth specs can be misleading: even with 1TB/s of memory bandwidth, if GPU/CPU compute bottlenecks the pipeline, you may only saturate 256GB/s. The question: what's the point of paying extra for bandwidth you can't use? Replies counter that the performance-bandwidth-power tradeoff still matters.
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