https://wccftech.com/steam-deck-supports-ray-tracing-vrs-and-other-stores-programmer-compares-it-to-xbox-series-x-in-power-per-pixel/

Following earlier rumors of a handheld system in the works at Valve, the Steam Deck was officially announced yesterday alongside a December 2021 release window.

The Steam Deck is powered by AMD's RDNA 2 architecture, so it's not surprising to hear straight from Valve's Pierre-Loup Griffais that the hardware support DirectX 12 Ultimate features like variable rate shading (VRS) and acceleration for ray tracing, but it's always good to get confirmation.