With patch 1.5, CDPR have introduced the option to have only local ray traced shadows. Along with FSR and big improvements to the performance of screen space reflections (which I leave on High or UItra), you actually get decent performance even on a non-RTX card. Fps may tank during extreme firefights (down to ~25-30 fps), like e.g. Johnny Silverhand's helicopter assault on the Arasaka Tower. But during regular gameplay, you'll achieve 40-70 fps.