The FPS are 'okay' on the laptop, details turned right down so it's perfectly playable, but obviously it's a much better experience playing on my main rig that's for sure. I use the YNAMP mod for the massive maps, which apparently should always crash late game, but to be fair they are usually okay for a good 500+ turns.
Like you these tests would be nice if they were done as Civ is still my most played game overall, so it's certainly important it runs well, but I know that it runs great on my 3900x and it's natural successor for me will be the 5900x most likely, so performance shouldn't regress anyway. I did run my memory at 3200CL14 for a while when I first installed the 3900x and bios support from ASRock for memory overclocking was a bit poor, but these days it's fine with 3600CL14, but without doing any proper tests I cant say if it makes any difference on Civ or anything else really. I can't say that I've noticed any improvement though, certainly nothing perceptible.
It's certainly a more difficult decision these days for Intel or AMD if you need to buy everything that's for sure, as the CPU choice/price for 5000 series is limited and poor... Intel seem the better value option ironically with AM4 socket due to retire, which obviously wont matter with Intel, as you'd need a new board regardless.
As good as RKL-S might be I can see AMD releasing their 5800/5700X and 5600 to offer a more value alternative. I just hope RKL-S is competitive although I would like to see AMD gain a bit more market share before Intel come out all guns blazing just to try and prevent a Bulldozer era repeat.