Unverified50% confidenceBenchmarkExact time
The CX7 NIC on the DGX Spark claims a latency of 1.5 microseconds, but because RDMA must route around the CPU to the GPU, the actual latency is approximately 20 microseconds.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
9/23/2026
First Seen
Valid until: 12/22/2026
Sources
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