(11-08-2015, 09:52 PM)sulblazer Wrote: As for rendering...getting 16gb, as I understand it, will not speed up rendering in any noticeable way. If you're not exceeding the 8gb of ram you already have, then getting 16gb may be pointless.
More RAM won't speed up rendering, but that's not the point here. In RAM dependant uses, the problem is filling up the whole capacity, which leads to different kinds of problems. In video editing, for example, the whole experience gets really sluggish as files need to be emptied and reloaded into RAM every time you skip to a different part of the video. If everything is loaded at the same time, there is no extra loading and waiting during the process.
So for OP, if you really run out of memory, go ahead and buy some more. It's probably the cheapest upgrade you can do for a pc. If you don't run out of RAM, then there's no need for more. If you get more, just remember to get the exact same type of memory (same brand, speed, capacity, model) or things could go really wrong. So, since you already have two 4GB sticks, you would buy two 4GB sticks more.