NVIDIA Jetpack Reference Guide - AGX Xavier
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Characteristics
The Jetson Xavier AGX is a powerful module with compact measures of 100mm x 87mm. The module is created for high-speed embedded applications offering up to 32 TOPS of AI performance. It is delivered on versions of 32 GB and 64 GB of memory size.

Refer to the Jetson Xavier AGX SoM Overview of the NVIDIA Jetson Xavier AGX wiki for a detailed overview of this module capacities.
Supported Jetpack versions