And that's precisely where I'm stuck at. I had to spring for both a new motherboard and video card last December (they both fried at about the same time), which forced me to economize on both. The best motherboard I could afford was the MSI 7592 which limits me to 8 Gb of DDR2 RAM. At the time that didn't seem to be any kind of limitation, because the combination was handling everything I threw at it. As I've said repeatedly, it wasn't until late May with the release of GC3 that I first encountered any kind of substandard performance.
If GC3 is representative of the current hardware minimum requirements, I truly am screwed. Looks like I'll be doing nostalgia gaming (GOG titles, etc.) for the foreseeable future.
Well that is sad news.
You'll probably be able to throw a lot of games at your rig without encountering any problems even for the coming years, but the 4x genre has always been one of the most demanding game genres out there, especially on the RAM part. 4x games always seem to be quite sophisticated and ahead of their time with the amount of information the computer needs to handle, especially if they are grid/hexgrid based. I've always experienced that with the Civilization series back in the old days, my computer was never quite able to run the newest installments when they came out, while everything else just performed quite well.
But probably almost every realtime strategy or shooter game out there will run just fine with 8 GB RAM for example, since they are all much more depending on the video card or CPU instead of RAM. Having said that, at least I don't know of any current first person shooter engine that would need that much memory.
Also there are a lot of indie games out there that somehow allow huge maps but still manage to have low memory footprints. Don't know how they are doing it, but probably that's one of their secrets they need to have if they want to stand out of the crowd and so they come up with brilliant ideas to squeeze out the most of the computer in a certain aspect.
Another thing to face is that the current generation of game consoles (PS4/XBone) also have only 8 GB of RAM which the CPU and GPU have to share in both systems, which basically means that this will hold back most of the game developers for quite some time, since even if they manage to optimize their game engines to profit from shared memory subsystems they can't miraculously conjure more RAM out of nothing, just use the existing amount more efficiently. Which in fact might also help developers use memory more efficient on a regular Desktop PC because of how both consoles are quite similar to regular desktop PCs due to using AMD64 APUs. But only at the very end of the console life cycles we will see games up to par with PC games but that's years from now and until then you'll probably have a new computer anyways because of how some of your components will die due to aging.
But as far as GC3 goes you'll probably be stuck with mapsizes below huge, because otherwise you won't stop facing the performance problems. That said, I don't know how much performance/memory optimization Stardock will continue to do on GC3, which over time, might lower the overall footprint, but I wouldn't wonder even if they get a few more percent out of their own engine they will instead throw it into powering more features, thereby effectively nullifying the performance gain.