If you are unfamiliar with the inner workings of DLSS, DLSS takes advantage of .dll files and preset modes. The DLL files get updated with the latest model that Nvidia adds to DLSS, and normally, new preset modes get added to trigger the new model. For example, to override games with DLSS 4.5, you have to enable either the M preset or the L preset.
However, the DLSS 4.5 models may not be the best for use in all situations. Nvidia's latest DLSS programming guide for game developers suggests that the older DLSS 4.0 presets J and K should be the default model for DLAA, Quality, and Balanced modes, while DLSS 4.5 preset M is the default for Performance mode. According to T om's Hardware's conversations with Nvidia on the ground at CES , the L preset is best used with the Ultra Performance mode.
You can, of course, use the DLSS 4.5 M model with higher-quality input scaling settings, but the computational expense of doing so may outweigh the image quality benefits of the new model.
If you want to override games with DLSS 4.5, it's worth doing your own research and testing all the presets to see which one looks the best to you for a given resolution and DLSS scaling factor.
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Aaron Klotz Social Links Navigation Contributing Writer Aaron Klotz is a contributing writer for Tom’s Hardware, covering news related to computer hardware such as CPUs, and graphics cards.
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Reference reading
- https://www.tomshardware.com/pc-components/gpus/SPONSORED_LINK_URL
- https://www.tomshardware.com/pc-components/gpus/community-tests-confirm-dlss-4-5-yields-20-percent-performance-loss-on-older-rtx-30-and-20-series-gpus-compared-to-dlss-4-0-nvidia-warnings-ring-true-following-rollout#main
- https://www.tomshardware.com
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