So my system specs are: Core i7 920 @ 2.7ghz, Gigabyte X58A-UD3R, 12GB DDR3, Samsung 850EVO SSD, two GTX970 video cards(SLI enabled but using nvidia default).
I did not use the -NoMinSpec command line switch, but had used -cheat, and started the maximum game allowed on my machine per v3.04. This was an Immense sized galaxy, occasional stars, abundant planets with abundant habitable ones, common resources, abundant asteroids, uncommon nebula and black holes.
I played to turn 44. By that point frame rates were good and the game was responding well. The turn times for the other 63 civilizations were already taking a minute or more. CPU utilization was similar on all 8 cores, around 50% and my system RAM was using 9GB of my 12GB. I then used the soak command to let the game play itself and went to bed. Approximately 7 hours later the game was on turn 341, the frame rates were between 2 and 4 fps. I stopped the soak. The menus were all quite slow.
I exited the game completely and restarted it and reloaded on turn 341. Frame rates were between 15fps(fully zoomed out) and 60fps(fully zoomed in) as I moved around the map. Zooming out until planets and such changed from a graphic to and icon I was still at 57fps. The menus were all working but response time inside them was very slightly lagged. I had several “orphaned ship yards” to deal with and that particular menu really bogged down, 1-2 seconds between mouse button press and response on the screen. I’m sure the game has to do a TON of cross referencing when reassigning planets to ship yards so I can see how that would slow down.
So the game is playable on my machine at the current maximum cap of Immense and 64 civilizations but would most likely need to restart it occasionally(maybe after 4 or 5 hours?) to keep things running smoothly. After seeing how long each turn takes, not the computer players but my own, I’d say it would take me months to finish a game like this! So from a allowable settings stand point allowing Immense with 64 players while only having 12GB of ram does seem to work. It is pushing the limits of my machine for sure though.
Hope that’s’ what you were looking for Derek.