The "System Latency" in the NVIDIA overlay goes from about mid-30ms to mid-50ms and the 99% FPS goes from about 60 to 90 with frame generation (and DLSS remaining as-is at quality). May sound silly, but the coil whine changes too. Without frame generation, there's "stutters" periodically. It's not smooth and you can hear the coil whine stop too when the game stutters like that. With frame generation, the pitch of the coil whine is less and the game runs buttery smooth. Honestly, I'm in awe when I can drive around the world at 200kmh without any perceivable drop in FPS, while watching the wet roads reflect all the lights.
Without DLSS and only frame gen, it feels laggy. And it's unplayable without both as it seems only get about 40FPS lol
Maybe certain game engines fair better than others? Obviously NVIDIA has worked heavily with CD Projekt Red, so it may be the "best case" scenario? I have it enabled in Hogwarts & Starfield too, but those are even slower paced than Cyberpunk.
Which games did you try out of curiosity?