Okay, thank you for describing that, I drew a couple charts to help me think through the situation. The lettered frames represent the image sitting on the gpu. It’s called B1 because it’s a frame that needs to be interpolated from frame B, so frame B needs to be rendered first before interpolation can occur. The numbers represent units of time, so in the first chart at time unit 2 Frame A is being displayed on the screen while Frame B is being rendered by the card.
The first chart I drew I made an assumption that the interpolation is basically free due to my understanding that the DLSS functions use specialized cores that could be running in tandem with the rendering of frame B. Then I realized that was an assumption and went over it again assuming frame B needed to be fully rendered and so interpolation would need to take a unit of time before displaying.
I think this illustrates what you’re saying.