With an RTX 2080, i9-9900K, and installed on a SATA SSD, with DLSS enabled on Quality mode on the High graphics preset (no ray-tracing), I maintain a variable 60-80 fps at 2560x1440, dipping lowest when driving through particularly reflection-heavy parts of town.
With DLSS off, the frame window drops to 40-50 fps. Ray-tracing options are particularly resource intensive, so I just kept them off.
The framerate hit wasn't worth the fancy lighting, nice as it looks on a rainy day or in a neon-lit club especially. Someday. Either way, a newer card will go a long way in Cyberpunk 2077, though players still hanging in at 1080p should do fine with older hardware.