Not trying to start an argument, but I made a spreadsheet, copied all games that Nvidia has listed on their DLSS supported page and then did the same with AMD. By my method there are 579 games that support some form of DLSS features, and 387 that have some FSR features. So, Nvidia has a 192 game lead over all if we count all versions of DLSS and FSR. On each generation of DLSS and FSR, AMD has been moderately to severely behind on some features, image quality, and sheer number of games with official integration. That said, the gap has substantially narrowed the last couple of generations of FSR... Seeing as the Nvidia page is not clarifying between which games support which version of DLSS, I am not sure how many Nvidia games are fully DLSS 4 enabled. AMD shows 36 are FSR 4 enabled.
https://www.amd.com/en/products/gra...ames.html#tabs-ab87f43a0c-item-60178a43f6-tab
See which games, engines and applications support NVIDIA DLSS Super Resolution, DLSS Frame Generation, DLSS Multi Frame Generation, DLSS Ray Reconstruction, DLAA, NVIDIA app DLSS 4 Overrides, and AI technologies when you have a GeForce RTX graphics card, GPU, or laptop.
www.nvidia.com
Each generation of DLSS looks better than the equivalent FSR the vast majority of the time, and that is definitely a real world performance advantage when true. That said, the new framegen tech from both is generally just not there yet for either one. The innacuracy in images and the input latency it introduces make it a no-go for me. I have two desktop systems. Intel cpu and AMD GPU in one, AMD CPU and Nvidia GPU in the other. In rasterized performance across the board, the RX 6700XT 12GB massively beats the RTX 4060 (8GB) I have in the other, for basically the same price.
For those reason, I think that the mainstream reviewers methods of testing pure raster performance at various resolutions and then additionally raytracing performance is still the best method for comparing value for most gamers that aren't also creators that need CUDA etc. If you fall into that camp and can afford it, you go with Nvidia.
(Yes, I knew the 4060 was/is a bad value buy on price-to-performance alone, but I wanted to make a tiny low-profile SFF build for behind my mounted TV. As far as form factor goes, it was the most price-efficient and performant without modding a larger card.)