Yes, Fastsync is in the drivers, but I'm not sure how far back NVidia has pushed this for older video cards.

The only way you can tell for sure is load the latest NVidia drivers and see if it is an option for your particular card.

CPU = i9 11900K
GPU = RTX 3080 Ti
Monitor = ASUS ROG Swift PG32UQX 2160p G-sync