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Efficiency cores sip bandwidth one by one, and twelve channels to 1536GB read as warehouse-scale at this count — as long as tasks stay fine-grained with decent data locality, 576MB of L3 catches most traffic on-package and the waiting is less dire than feared. Feed it a whole large model in batch, though, and bandwidth bottoms out while cores idle for nothing.\u003C\u002Fp>\u003Cp style=\"margin:0 0 4px;line-height:1.5;\">  Teams with workloads that split into vast numbers of small units and a per-watt throughput target still find this the end of the line; anyone whose metric is per-request speed should never have looked here. 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