Portal with RTX is not only a mod but in many ways, it remakes Valve's iconic puzzle game thanks to its stunning use of real-time ray-tracing. Like Quake II RTX and Minecraft RTX before it, it presents a fully path-traced version of the game - and one that shines with DLSS 3.

A snippet.

Portal with RTX presents a fully ray-traced version of Portal, to the point where the ray-traced light show beams through the various portals you play with. Every light you see is path-traced, and the results are pretty incredible. The glow of portals, the translucent buttons, the transparent reflections. The reflections within reflections within portals. So good.

Of course, you’ll need a GeForce RTX 30 Series or 40 series GPU to play Portal with RTX as intended - with some DLSS magic of course. With a GeForce RTX 4090 and the added bonus of DLSS 3’s Frame Generation, you can push the resolution to 4K with a frame-rate well above 60 fps. A massive step up from how we experienced Portal back in the day on a PC or Xbox 360.

Our Full Portal with RTX Review