NVLink is no longer supported on the Ada Lovelace GPU architecture that powers Nvidia’s flagship RTX 4090 graphics. Replacing NVLink is the PCIe Gen 5 standard. Nvidia will use the freed up space from the removal of NVLink to cram in more AI processing capabilities.
NVLink died because PCIE Gen5 can handle incorrect now, no external hardware needed.
PCIe 5.0 cannot do what NVLink does, and NVLink isn’t dead at all.
https://www.windowscentral.com/hardware/computers-desktops/nvidia-kills-off-nvlink-on-rtx-4090#:~:text=NVLink is no longer supported,in more AI processing capabilities.
The RTX A6000 ADA also drops nvlink. No idea why the downvotes