Agentic AI Reference Architecture

Infrastructure · Infrastructure resource

PCIe GPU Bus

Infrastructure resourceInfrastructureInfrastructurearc:PCIeGPUBus

A general-purpose peripheral bus connecting GPUs without hardware coherence, requiring CPU-coordinated copies for inter-GPU transfers.

Responsibility. Provides baseline GPU connectivity at lower cost.

Also known as: PCIe 5.0 x16

Variant of GPU Interconnect abstract

When to choose. Choose for smaller or lower-utilization deployments and data-parallel workloads where interconnect bandwidth is not the bottleneck.

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Direct neighbourhood (hover for relationship types)

Relationships

alternative to variability

Quantitative guidance

As stated by the sources; verify before use.

Sources

  1. Ch7.1A: T. Nguyen, "Advanced Implementation with Nvidia NEMO Framework and Nvlink," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 7.1A. ISBN: 9798244538229.