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English(EN) I want to add a second 7900XTX, question about pcie2/3/4

用户在 PCIe 担忧下寻求关于 LLM 双 GPU 显存升级的建议

Reddit r/LocalLLaMA 版块的一名用户正在寻求关于在其系统中添加第二块 AMD 7900XTX GPU 以增加本地大型语言模型 (LLM) 推理的显存的建议。主要担忧是主板的 PCIe 通道配置可能造成的潜在性能瓶颈,特别是次要 GPU 的 PCIe 2.0 插槽,而 CPU 支持 PCIe 4.0。用户正在权衡升级主板至兼容 PCIe 4.0 型号的成本和收益,并询问这些 GPU 的张量并行(tensor parallelism)的有效性以及 PCIe 2.0 是否会成为层拆分(layer splitting)的重大问题。 AI

影响 考虑用于本地 LLM 推理的多 GPU 设置的用户需要仔细评估 PCIe 带宽限制。

排序理由 用户关于 AI 推理硬件配置的查询。

在 r/LocalLLaMA 阅读 →

AI 生成摘要 · Google Gemini · 来自 1 个来源。 我们如何撰写摘要 →

用户在 PCIe 担忧下寻求关于 LLM 双 GPU 显存升级的建议

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Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
用户关于 AI 推理硬件配置的查询。
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Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
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infra
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High
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97 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

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报道来源 [1]

  1. r/LocalLLaMA TIER_1 English(EN) · /u/itch- ·

    我想再加一块7900XTX,关于pcie2/3/4的问题

    <!-- SC_OFF --><div class="md"><p>I've got a 7900XTX in my old gaming PC, now I want more vram and if I stay on one GPU I can only reasonably get 32GB and that just doesn't sound good enough. Using two slots, 48GB sounds way better and is much cheaper. I think 48GB is the minimum…