https://www.pcgamer.com/nvidias-41163-gpu-driver-release-adds-support-for-geforce-rtx-graphics-cards/

Nvidia is pushing out an updated driver package that adds support for its newly minted GeForce RTX 2080 Ti and GeForce RTX 2080 graphic cards.

The driver release, version 411.63, is an incremental bump over the 411.51 driver release that Nvidia provided to us and other reviewers for testing. If you pre-ordered one of the new cards, or plan to pick one up, this is the GPU driver you'll need to take full advantage of your new hardware. Among other things, it adds support for Nvidia's RTX technology, and by extension Microsoft's DirectX Raytracing (DXR) API.