STALKER 2 will support DLSS 3.0 and with that, NVIDIA has already teased its numbers, claiming over 2X performance uplift compared to native resolution.
NVIDIA GeForce RTX 40 GPUs with DLSS Performance Mode result in over 2x…
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https://wccftech.com/nvidia-2-4x-performance-boost-dlss-3-0-stalker-2-heart-of-chornobyl-over-100-fps-4090-4k-max-settings/