Some interesting notes here from how to fix a shimmering [checkerboard] TAAU result for high frequency detail like foliage. I'd say the final output results are truly night & day. https://youtu.be/uNXLZ-mkrHs
In terms of raw internal pixels, H:FW in this mode uses up to the equivalent of FSR2/DLSS2 Balanced Mode (only checkerboarded grid coverage of each frame rather than jitter patterned regular grid) with dynamic scaling below that to maintain framerate.
Mastodon server focused on game development and related topics.