"DLSS upscaling is being improved by a new "second-generation transformer model" that Nvidia says has been "trained on an expanded data set" to improve its predictions when generating new pixels. According to Nvidia's Bryan Catanzaro, this is particularly beneficial for image quality in the Performance and Ultra Performance modes, where the upscaler has to do more guessing because it's working from a lower-resolution source image."
"DLSS Multi-Frame Generation is also improving, increasing the number of AI-generated frames per rendered frame from three to five. This new 6x mode for DLSS MFG is being paired with something called Dynamic Multi-Frame Generation, where the number of AI-generated frames can dynamically change, increasing generated frames during "demanding scenes," and decreasing the number of generated frames during simpler scenes "so it only computes what's needed.""
"The standard caveats for Multi-Frame Generation still apply: It still needs an RTX 50-series GPU (the 40-series can still only generate one frame for every rendered frame, and older cards can't generate extra frames at all), and the game still needs to be running at a reasonably high base frame rate to minimize lag and weird rendering artifacts. It remains a useful tool for making fast-running games run faster, but it won't help make an unplayable frame rate into a playable one."
Nvidia skipped new GeForce card introductions at CES and focused on software improvements for existing hardware. DLSS 4.5 adds several new features to upscaling and frame generation. DLSS upscaling uses a second-generation transformer model trained on an expanded data set to improve pixel-generation predictions, especially in Performance and Ultra Performance modes where the source image is lower resolution. DLSS Multi-Frame Generation increases AI-generated frames per rendered frame from three to five and introduces a 6x mode with Dynamic Multi-Frame Generation that varies generated frames by scene complexity. Multi-Frame Generation requires an RTX 50-series GPU and helps high-frame-rate games run faster but cannot make unplayable games playable.
Read at Ars Technica
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