 The protocol was first announced in March 2014 and uses a proprietary High-Speed Signaling interconnect (NVHS).NVLink is a wire-based communications protocol for near-range semiconductor communications developed by Nvidia that can be used for data and control code transfers in processor systems between CPUs and GPUs and solely between GPUs.NVLink specifies a point-to-point connection with data rates of 20 and 25 Gbit/s (v1.0/v2.0) per differential pair.