2070S, 3700X, 32Gb RAM @ 3200
Over London my VRAM is maxed out at 1440p, mostly high settings some ultra. Render scale 100, ground textures at 130.
RAM over London is sitting at 13-14Gb and is stable, I can fly multiple loops and see little change.
FPS holds at 30-40fps even at sub 500ft.
This is pretty similar for me in NY and Tokyo