Unverified90% confidenceFactTime unknown
当前主流的NDR InfiniBand提供400Gbps的端口速率
1
Sources
90%
Confidence
Long-term
Relevance
6/1/2026
First Seen
Sources
Related Entities
Related Claims
UnverifiedInfiniBand由NVIDIA通过收购Mellanox主导，其最新NDR标准提供400Gbps带宽74% similarVerifiedNVLink 4.0的双向带宽可达900GB/s，而跨节点InfiniBand HDR仅约50GB/s，差距近20倍72% similarUnverifiedHDR InfiniBand提供200 Gb/s带宽与微秒级延迟70% similarUnverified对于70B模型（序列长度2048、隐藏层维度8192），每层激活值约32MB，在InfiniBand(400Gbps)中约需0.6毫秒，而在50Mbps家庭宽带下需超过5秒68% similarUnverified背板带宽(交换容量)应≥所有端口速率总和×2才能实现无阻塞转发：8口千兆需≥16Gbps，包转发率需≥11.9Mpps65% similar
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