I’m getting around 30% better performance with the 4090 vs the 3090 based on rasterization alone (all graphics settings the same). Also there’s 3x less low fps with the 4090. With DLSS3 fps is doubled.
This is some benchmark stats for a KAVX-KLAX flight with inibuilds KLAX and live traffic with FSLTL models.
3090 DLSS
4090 DLSS
DLSS3