I'm in the same boat. I took a risk buying it on PC given mine is like 9 years old (2500k, HD 7970 3GB.) I figured that if I can play all other current gen games without issue at 1080p (mix of settings), then it should be OK. I just hope CDPR have scaled the settings on PC well.
I'm running a 2700X and Vega 56, so hopefully not too bad, but obviously compared to a lot of people here it is.