Why does a GPU need an optical module
NVIDIA GPUs are designed for parallel computing and high-throughput AI workloads, which require extremely high bandwidth between nodes. Traditional copper connections cannot meet the multi-terabit-per-second bandwidth and low latency demands of large GPU clusters. Various versions of calculations regarding the ratio of optical modules to GPUs circulate in the market. GPUs such as the A100, H100, and upcoming GH100 require high-speed optical interconnects to link thousands of GPU nodes, enabling large-scale AI model training and inference. Without them, even the most powerful GPU clusters would be bottlenecked by network limitations.
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