Portal RTX has received a performance boost on Steam Deck, making it run up to 60FPS, thanks to a new fan-made mod.
Through some clever tinkering of the in-game settings, NightSightProductions were able to make Portal RTX playable on Steam Deck. Although they were able to achieve a stable 30FPS, this came with the downside of the game running at a measly 846 x 486 resolution. Now, the same team of modders has done it again, giving Portal RTX a significant boost on the Valve handheld.
NightSightProductions has managed to get Portal RTX to run at 720p, sitting around 50 to 60FPS, leagues above the previous 30FPS achievement. They’ve managed this impressive feat by taking code from the brand-new Nvidia Remix GitHub post, which brought with it additional RADV support, and adding it to Portal RTX. The increased RADV support likely improves performance, as the Steam Deck is powered by AMD GPUs which rely on specific RADV Vulkan-based drivers.
NightSightProductions explains in their brand-newYouTube video, that adding the RADV support coding doubled the performance of Portal RTX on Steam Deck. They have now packaged the end result, into a mod that anyone is free to download and try out for themselves. The mod includes custom presets, varying in performance quality, which NightSightProductions additionally put together through their research during the modding project.
As of writing, the mod is still being approved by Nexus Mods, so its publication to the massive mod site is still pending. However, once thePortal modis approved, anyone with a Steam Deck and copy of the original Portal game, along with the Portal RTX add-on, can download it and see the impressive results on their own Valve handheld.
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Rosalie Newcombe was a Senior Tech Writer on Dexerto’s UK team. Rosalie is an expert on all things handhelds, and has been picking them up since the original Game Boy, all the way up to the Steam Deck. They have covered hardware for PCGamesN and Custom PC.
