SXM
High performance computing socket
EntityQ111945017
Also known as Server PCI Express Module
- Subclass of
High performance computing socket
Also known as Server PCI Express Module
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SXM is a high bandwidth socket solution for connecting Nvidia Compute Accelerators to a system. Each generation of Nvidia Tesla since the P100 models, the DGX computer series, and the HGX board series come with an SXM socket type that provides high bandwidth and power delivery for the GPU daughter cards. Nvidia offers these combinations as an end-user product e.g. in their models of the DGX system series. Current socket generations are SXM for Pascal based GPUs, SXM2 and SXM3 for Volta based GPUs, SXM4 for Ampere based GPUs, and SXM5 for Hopper based GPUs. These sockets are used for specific models of these accelerators, and offer higher performance per card than PCIe equivalents. The DGX-1 system was the first to be equipped with SXM-2 sockets and thus was the first to carry the form factor compatible SXM modules with P100 GPUs and later was unveiled to be capable of allowing upgrading to SXM2 modules with V100 GPUs.