Nvidia has killed SLI as we know it - Transitions to "Native Game Integrations"
 

Ampere lacks support for Implicit SLI.

https://overclock3d.net/gfx/articles...093033209s.jpg

Read more about Nvidia killing SLI as we knew it.

If games support explicit sli you don't really need a connection between two cards? That was why the initially talked about using both Nvidia and AMD cards and it would work.

If Nvidia support Devs in making this work, technically they won't need a SLI bridge if I remember correctly. Though I doubt they would let them work with anything from AMD.