Made For:
Windows Vista
===============================================
Let me first off by showing you my before FPS.
Now let me show you how to double or even triple your Frames per second for a clear experience on Crossfire.
First thing you need to do is update your gaming graphics with
ATI Radeon HD 4890 Series.
Download it fitting your Vista.
After that unselect Folding homes Product.
Download Link:
Graphics Drivers & Software
Now that that's down we need to put Windows Vista on it's best performance.
Go to your Control Panel
Start > Run > Control
On the Left Click Classic View:
Now,
These are the Icons you will be using.
So now click on "Windows Sidebar Properties" and Disable it, all this really does is take up Virtual Memory and is pretty much useless.
Make your options the same as Mine.
Now go back and Click on "Performance Information and Tools"
In the tasks menu on the Left click Adjust Visual Effects.

Click Apply then Ok.
Then click on "Adjust for Best Performance" although the theme may suck you would be surprise about how quickly your Computer loads.

Click Apply then Ok.
Now Click on "Adjust Power Settings"
Then Click on "High Performance" pretty much self explanatory.
After that download Game Booster
Download Link:
IObit Game Booster 1.1 - TechSpot Downloads
You can now go play Crossfire in Full Performance.