When you do advanced tasks with your PC, the performance capabilities of your PC hardware—the processor, memory, graphics card, and storage—can make a big difference. But understanding these capabilities and how they interact can be challenging.
Windows Vista introduces Windows Experience Index (WEI) to help you understand your PC’s performance capabilities, and to ease the task of buying new PCs, hardware, and software.
Windows Experience Index is a simple, numeric system that rates how well your PC can run the performance-oriented features in Windows Vista, such as the new Windows Aero user interface, multiple monitors, high-definition TV, and personal video recording. The numerical rating can also help you match the right software to run on your PC.
The Windows Experience Index rating is determined during the installation of Windows Vista. The rating is computed by running a set of capability tests on five critical hardware components:
Each test results in a capability score between 1 and 5.9 for the component. Since a PC’s performance is limited by the lowest performing component, the overall test result, or “base score,” for the PC is determined by the lowest of the five scores.
The rating system is particularly useful for consumers when:
Retailers and PC, hardware, and software manufacturers can also use the Windows Experience Index to help customers shopping for PC hardware and software by: