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Unverified85% confidenceFactTime unknown

GB200 NVL72的72块GPU可以按照NVLink拓扑结构划分为不同粒度的块，包括9个8-GPU块、4个18-GPU块、2个36-GPU块或1个72-GPU块

1

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85%

Confidence

Long-term

Relevance

6/1/2026

First Seen

Sources

GB200 NVL72块调度实战：Slurm如何榨干机架级NVLink性能

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GB200 NVL72product NVLinkconcept

Related Claims

UnverifiedGB200 NVL72机柜将36块Grace CPU与72块Blackwell GPU通过NVLink 5.0互联，NVLink双向带宽为1.8 TB/s73% similar Verified在H100 NVLink架构中，单台服务器内8块GPU可通过NVSwitch全互联，总带宽达900GB/s，相比PCIe 5.0的64GB/s有数量级提升72% similar UnverifiedLlama 3 8B有32层、8个KV头（GQA架构，查询头32个）、头维度128，8192上下文FP16单序列下KV缓存约1.07GB70% similar UnverifiedGPU渲染优先看显存容量而非节点数：单帧场景显存占用超过节点单卡显存会直接崩溃或转CPU。大型场景（>24GB显存需求）需选提供48GB或多卡NVLink节点的平台，否则再多节点也无法渲染单帧69% similar Partially VerifiedPCIe通道数决定能挂载的GPU和NVMe数量：Threadripper PRO/EPYC提供128条PCIe 4.0/5.0通道，可支持4-7张GPU全速运行；消费级平台（Intel Core/AMD Ryzen）仅约20-28条可用通道，插2张显卡就会降速到x8/x868% similar

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