In brief: Buried near the end of the description for the Nvidia App update that introduced support for RTX 50 series graphics cards, multi-frame generation, and DLSS 4, is a little-noticed new feature: driver-level single-frame generation for any DirectX 11 or DirectX 12 game running on Nvidia's latest GPUs. Early testing suggests that the company's "Smooth Motion" AI model significantly boosts perceived frame rates in Kingdom Come: Deliverance 2, with only minor visual artifacts. The few users who have managed to get their hands on a GeForce RTX 5080 or 5090 can engage frame generation in most games released in the past 15 years through a new Nvidia App setting. A future update will extend the functionality to RTX 40 series GPUs.Dubbed "Nvidia Smooth Motion," this driver-level model interpolates one AI-generated frame between every two traditionally rendered frames in DirectX 11 and DirectX 12 titles that lack native DLSS or frame generation support.Similar to AMD's Fluid Motion Frames, it extends the benefits of single-frame generation originally introduced with RTX 40 series cards by bringing it to back-catalog games.The Smooth Motion setting is located in Graphics > Driver Settings for both individual program settings and global settings in Nvidia App version 11.0.2.312 or later, just below the DSR Factors setting. According to PC Games Hardware, which tested the feature on a pre-release build of Kingdom Come: Deliverance 2, toggling Smooth Motion on or off requires rebooting the game.When enabled on an RTX 5080 at 4K DLSS quality mode under the game's maximum "Experimental" graphics preset, Smooth Motion increased the average output frame rate from 83.3 fps to 135 fps a 62% uplift. However, capping the frame rate at 120 fps and enabling variable refresh rate resulted in significantly smoother frame times while reducing the rendered frame rate to 60 fps. Fortunately, latency remains largely unaffected, especially if Nvidia Reflex is activated. // Related StoriesNote the distorted text and blurred characters. Compare with non-AI-generated frame here. Click to enlarge.However, Smooth Motion introduces more noticeable artifacts than full native frame-gen implementations because it applies interpolation uniformly rather than selectively. For instance, interface elements like subtitles may appear distorted in AI-generated frames.Additionally, the feature remains active during Kingdom Come: Deliverance 2's cutscenes, which are normally locked at 30 fps. While visual flaws such as blurred characters are less apparent at higher frame rates, they become more pronounced when 30 fps cutscenes are interpolated to 60 fps.More in-depth testing will likely emerge as RTX 50 series GPUs reach more consumers in the coming weeks and Smooth Motion rolls out to RTX 40 series cards.