Portal: Prelude RTX | RTX IO Off vs On Comparison – Cake Scene

With ground-breaking GPU-based loading and asset decompression, RTX IO delivers much faster texture load times, and 44% less disk space use in Portal: Prelude RTX. Captured using GeForce RTX 4090 at 3840x2160 resolution, Highest Game Settings, DLSS Super Resolution Performance Mode, DLSS Frame Generation, i9 12900k, 32GB RAM, NVMe 980 Samsung Pro 2TB, Win 11 x64.