Portal with RTX

Portal with RTX is a free DLC for all Portal owners developed by NVIDIA Lightspeed Studios. Experience the critically acclaimed and award-winning Portal™ reimagined with ray tracing. Every frame of gameplay is upgraded with stunning full ray tracing, new, hand-crafted hi-res physically based textures, and new, enhanced high-poly models evocative of the originals, all in stunning 4K. In Portal with RTX, full ray tracing transforms each level, enabling light to bounce and be affected by the scene’s geometry and materials. Every light is ray-traced and casts shadows, global illumination indirect lighting naturally illuminates and darkens rooms, volumetric ray-traced lighting scatters through fog and smoke, and shadows are pixel perfect. Portal with RTX is compatible with all ray-tracing capable GPUs. Don’t bother running it on an AMD GPU, using a 3600x with a 6900 XT it’ll take around two minutes to load the main menu, and then range from 2 FPS to 19 FPS whilst looking horrific. Second time around trying to play it after messing with settings the performance was still the same, after leaving the second elevator getting to encounter constant freezing and the dreaded repeating audio that you would get playing Source games on super low end hardware. For me, not all achievements were recognized by Steam. Since the easiest achievement “Lab Rat” was only earned by a few players, I assume that other players have the same problem.