Performance Information and Tools lists your computer's Windows Experience Index base score, which indicates the performance and overall capability of your computer's hardware.

Open Performance Information and Tools by clicking the Start button Picture of the Start button, clicking Control Panel, clicking System and Maintenance, and then clicking Performance Information and Tools.

The base score can help you buy programs that match your computer's performance level. The base score only pertains to the performance aspects of the computer that affect how well features in Windows and other programs will run on this computer, and does not reflect the overall quality of your computer. For more information, see What is the Windows Experience Index?

Individual hardware components, such as your computer's central processing unit (CPU) and random access memory (RAM), are tested and receive a subscore. Your computer's base score is determined by the lowest subscore. For example, if the lowest subscore of an individual hardware component is 2.6, then the base score is 2.6. The base score is not an average of the various subscores.

If you install new hardware and want to see if your score has changed, click Update my score. To view additional details about your computer's hardware, click View and print details.