To answer your question it has to do with your GPU not being good enough. As for overclocking that is typically locked on laptops. Though you could try it at least for your GPU since that might be able to be overclocked, but I would advise against it since cooling is always an issue in laptops and you are either asking to kill your laptop or cause a fire imo. As for the CPU you can't overclock that. So in other words play the game on a lower setting or deal with the low FPS. Also more RAM won't help you.

I can't run FarCry 3 maxed on an i5-2500k @ 4.4GHz and a GTX 560ti Of course, I had a second monitor running with a video chat going, but still... also, using the "@" symbol just makes "at"

Well, it should be presumed that because you're running on a laptop that you're not going to be able to max out every modern game with desirable results. Your hardware isn't particularly "bad", but that they are the mobile versions and have more limits than their desktop counterparts. I personally wouldn't worry too much about them unless you must max everything out to enjoy a game (and in that case, a desktop would be more ideal). Also, I wouldn't really overclock your hardware in a laptop. Laptops are more compact and there is less cooling overall due to limited airflow. I'd only overclock if you are certain you can keep the temperatures lower, but it also depends on your motherboard for overclocking so a laptop most likely doesn't allow much overclocking, if at all. The CPU and GPU are probably also locked into their settings anyhow. For why your performance is different in different games is that each use a different engine (at least in your case), and so I wouldn't take that as indicator for performance issues other than some games require more powerful hardware to max out. Finally, upgrading your RAM will not result in a noticeable performance boost in your case. 4 GB is more than most applications will even touch. VRAM is more important in this case for games, but your GPU is probably limited to 1-2GB.