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 Builds Its Own AI Chips: The Strategic Logic and Challenges Behind Compute Independence
hackernewshackernews7/9/2026
Related Claims
UnverifiedNVLink 4.0 (used in the H100) can achieve a unidirectional bandwidth of 900 GB/s.85% similarVerifiedConventional PCIe Gen5 provides approximately 128 GB/s of bidirectional bandwidth.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 offers a bidirectional bandwidth of up to 900 GB/s, while cross-node InfiniBand HDR offers only approximately 50 GB/s, a gap of nearly 20 times.81% similarUnverifiedNVIDIA's H100 is equipped with 80 GB HBM3, delivers memory bandwidth of 3.35 TB/s, and NVLink 4.0 provides 900 GB/s bidirectional bandwidth.79% similar
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