Glad I didn't watch the vid if they only did synthetics, lol!
TPU showed a 6% difference from FE to Super FE at 2560x1440 (less at 1080, but this isn't really a 1080p card, but higher) across 21+ titles.
I wish they would have cut into the 2080Ti's lead a bit more as it had a larger gap than between any other card, but... 6% improvement for $100 less (MSRP) I can't complain.