英伟达测试低内存Rubin Ultra

报道称英伟达正在测试更低内存配置的Rubin Ultra设计，部分方案低至192GB，并可能从HBM4e退回HBM4。此举被认为与AI硬件供应链中的内存短缺压力有关。

事件进展（2 篇报道）

1. 2026-08-11 06:30
   Reddit r/hardware Nvidia reportedly testing lower memory configs of Rubin Ultra as memory shortage bites back — designs tested include as little as 192 GB and step back to HBM4
2. 2026-08-11 13:15
   Reddit r/LocalLLaMA Nvidia reportedly testing lower memory configs of Rubin Ultra as memory shortage bites back — designs tested include as little as 192 GB and step back to HBM4

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