While Nvidia Deep Learning Super Sampling (DLSS) support is not coming to the full 3DMark Port Royal benchmark, but rather just as a DLSS Feature Test, according to Nvidia's blog, it shows that RTX series can deliver up to a 50 percent performance boost while providing a better overall graphics quality, compared to native TAA.
In case you somehow missed it, Nvidia DLSS uses Turing GPU Tensor cores to upscale native resolution images and both improve performance and graphics quality, compared to the commonly used Temporal Anti-Aliasing (TAA) technology.
In order to run the DLSS Feature Test, you must have 3DMark Port Royal, Windows 10 with October 2018 update, and, of course, Nvidia RTX series graphics card with the latest Geforce 418.81 WHQL driver.