This one is better. But, 2x to 8x better... I don't think so... maybe. Did the 2x to 8x make ANY difference in your FPS? If the viewer is doing the AA you should see a change in FPS. For us to really tell, we need an image that is a 1-to-1 image. So, in Firestorm take a snap using Current Window for size. Then crop that image to a 512x512 for posting in forum. Here you can see my FXAA handled by the GTX 1060 using Current Window is about the same as the 8x you are seeing.