NVLink
NVLink is a high-bandwidth, low-latency interconnect technology developed by NVIDIA to enable fast data exchange between GPUs, and between CPUs and GPUs, in supported systems. It provides direct, multi-lane connections that can be combined to create a higher aggregate bandwidth than traditional PCIe, and can support memory-coherent access across devices for certain CUDA workloads.
The links are point-to-point and can be configured in various topologies. Individual NVLink links connect two
NVLink is primarily used in data-center GPUs and accelerators aimed at high-performance computing and artificial intelligence.
Background and evolution: NVLink was introduced in 2016 and has since evolved across NVIDIA’s server-class architectures,
Limitations: NVLink requires compatible hardware and software support and is not universally enabled on all NVIDIA