This handy program will give your computer a performance rating based on Processor speed, Memory, Graphics for running Aero and 3D gaming and your hard disks data transfer speed. The index ranges from 1 to 5.9 Mine is 3.5 for a few year old P4 2.4GHz with 1 gig of ram, and Vista runs just fine.You can get to the program by clicking the Windows Pearl- control panel- system maintenance- then under the System tab click check your computers Windows Experience Index base- update my score.

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