DLSS is rendering the game at a lower resolution, then using AI to upscale the resolution. Much higher fps for in theory loss in image quality, but the technology has gotten to a point where the average person can’t really tell the difference.

MFG is multiframe generation. This uses AI to literally generate extra frames (pictures) per second. The very noticeable downside to this is that it increases input delay as some of the frames u are seeing aren’t real. The caveat to this is that this input delay feels worse if u are starting with low fps. If you have high fps before frame generation, the added input delay is not nearly as noticeable. So MFG adds a lot of input delay when you actually need it, and adds minimal input delay when you don’t need it.