The Bid

By Sandeep Narahari, Contributor

A100 PCIe vs SXM in 2026: Single-GPU vs Multi-GPU Scaling Reality Check

The A100 PCIe and A100 SXM deliver near-identical single-GPU speed, but SXM's NVLink and NVSwitch pull ahead across multiple GPUs. What differs between the two form factors, a benchmark where SXM runs about 4.4x faster at 4 GPUs, and when to pick each.