Verified65% confidenceFactExact time
NVLink 4.0的双向带宽高达900GB/s，而传统PCIe总线带宽约为64GB/s
3
Sources
65%
Confidence
Long-term
Relevance
7/12/2026
First Seen
Sources
DeepSeek自研AI芯片：算力自主背后的战略逻辑与挑战
hackernewshackernews7/9/2026
Related Claims
UnverifiedNVLink 4.0（用于H100）单向带宽可达900 GB/s85% similarVerified传统PCIe Gen5提供约128GB/s的双向带宽83% similarVerified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83% 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81% similarUnverified英伟达H100配备80GB HBM3，内存带宽达3.35 TB/s，NVLink 4.0提供900 GB/s双向带宽79% similar
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