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Does IGX Developer Kit Support Full x16 PCIe Gen4 Bandwidth

Mar 04, 2024

According to the specs, the IGX Developer Kit has a two full-width PCIe Gen5 slots (one trimmed to x8) to support discrete GPUs like the RTX A6000. However, judging by the listed module specs and the 248 TOPS, it probably uses the Jetson AGX Orin™ Industrial SoM, which only has 24 PCIe Gen4 lanes; and can only be configured to use two x8 and one x4 controllers according to the Orin TRM. Therefore, I’m assuming that the attached GPU would always be trimmed to 8 lanes.

Could someone from NVIDIA please clarify if that’s the case?

Also, are any other discrete GPUs supported?