I have a 3.6 ghz processor, a mid-range graphics card (Radeon 7750), and 4gb of ram, but I feel like my computer lacks the performance power compared to other systems of similar specs or worse. Like when I watch this video, The description says that he gets an average of 31 fps playing the Witcher 2 on Ultra with the same graphics card, a slightly worse cpu (@ 3.4 ghz) and 8 gb of RAM but whenever I run the Witcher 2 on all Low settings, I can only get about 10 - 25 fps. I’m sure there other factors for this performance decrease but the fps difference is so drastic. So my question is, how much of a difference does some more ram make, and how can I speed up my system (preferably without overclocks).
PS: I clean out my processor and graphics card fans every month so I don’t think heat is the issue.