ssamramg :
lowriderflow :
start with this... download the coretemp program (and also the widget b/c it's easier to view/read)
it will display your core usage temps and also how much of your RAM is being used.
i'd also install afterburner and view your GPU usage... temps... and VRAM usage.
viewing the temps and % usage of all your components should end up being a simple diagnosis of where you're bottleneckking or possibly getting thermal issues causing issues
I have Core Temp And ASUS GPU Tweak installed. The temp's for both CPU and GPU are in the 45 deg celcius range. BUT, The RAM is being used up 98%-99%. would buying 2gb extra ram solve the problem?
Then probably your RAM is the issue, I guess you have lot of background processes running. Whenever I get lag I use
Razer Game Booster. It will greatly reduce the RAM usage believe me. You just have to select unnecessary services, processes like windows themes, sidebar widgets, bluetooth, antivirus, browsers, update processes and much more. Once you will exit game you can easily return to your normal mode by just a click. Try this app before buying extra RAM.