Re: The Sims 4 lagging on Gaming PC
@Faycasta Adding more memory probably would help, yes, especially if you like to run other tasks in the background while you play. Sims 4 should still run fine on systems with 8 GB RAM, but Windows and the game together can take up almost all of that these days. And while your system should use the page file to compensate, swapping files back and forth is going to be slower than having everything loaded into main memory.
The other issue is that Sims 4 does have occasional slowdowns regardless of how much memory a system has, or how powerful it is otherwise. It's possible that the RAM spikes correspond with times when the game would slow anyway, as it's loading a large amount of data (e.g. switching to Build/Buy, loading a lot with a lot of sims or a lot of stuff) all at once. The lags and other delays are getting more frequent, unfortunately, and there's probably not a lot anyone can do about it. That's not to say that more memory wouldn't help at all, just that it probably wouldn't be a cure.
RAM is cheap these days, so even if you're not sure it's going to help, it's a cheap experiment. Your motherboard supports 32 GB memory total, but 16 would probably be more than enough. Be sure to either get matching memory modules to what you have now (matched by product number, which you can see on the modules themselves), or find something with the same speed and timings that's also on the list of supported RAM for your board:
https://www.msi.com/Motherboard/support/Z87-G45-GAMING#support-mem-0
Of course, if you're replacing your existing RAM, you don't need to worry about matching anything; just get something on the supported list.
If you want to do more testing before spending the money, try playing in a clean boot, with nothing else open in the background aside from Sims 4 and Origin. That should keep RAM use down as low as possible, and you might get a better idea of whether the lag would be less intrusive with more memory. It's not a perfect comparison, just another data point.
