For several months I have been using a free application called Razer Game Booster, by ioBit.
It is a standalone application which shuts down superfluous, non-game related processes on your rig while you’re playing a game.
It seems to be most effective when playing less “optimized games” developed by smaller studios who don’t have the luxury of hundreds of programmers and a massive Quality Assurance department and especially console ports where often very little effort is made to make the product run well across the plethora of hardware configurations.
While graphic intensive Triple-A titles like Far Cry 3 won’t be dramatically improved the suspension of dozens of unneeded operations can still help you eek out a few extra frames per second.
According to Razer Game Booster’s interface I am gaining an approximate 42% increase in performance while playing whatever game I am currently enthralled by.
It’s also important to note that this software is compatible with all major anti-cheat software so it won’t be mistakenly interpreted as a “hack”.
Razer Game Booster also features an extremely useful in-game frames-per-second display and has an excellent video capture software that records in full HD video fidelity and doesn’t leave a watermark on your output videos like the videos taken with the trial version of FRAPS that we’ve all seen on YouTube.
It’s become a standard tool in my video game utility belt and I highly recommend it whether you have a liquid cooled super computer or a hand-me-down laptop.
TweakHunt did a very thorough analysis of Game Booster’s effectiveness, which you can read here.
Download Razer Game Booster