SXM (Server PCI Express Module)

The SXM (Server PCI Express Module) is a high-bandwidth socket solution designed for connecting NVIDIA Compute Accelerators to a system.

Use Cases:

SXM modules are typically built with four or eight GPU slots.
Some solutions, like the NVIDIA DGX-2, connect multiple SXM boards for even higher performance.
Recent SXM boards may include NVLink switches for faster GPU-to-GPU communication.

Comparison with PCIe:

SXM sockets offer significantly higher bandwidth than PCIe (e.g., PCIe 5.0 provides up to 64GB/s in a x16 slot).
GPUs on SXM modules can share memory over NVLink, presenting as a single massive GPU to the host system.

The SXM socket architecture enables powerful GPU servers, making it a crucial component for high-performance computing and AI workloads.

SUPPORT FOR ARTIFICIAL INTELLIGENCE AI WORKFLOWS