SiSoftware Sandra (the System ANalyser, Diagnostic and Reporting Assistant) is an information & diagnostic utility. It should provide most of the information (including undocumented) you need to know about your hardware, software and other devices whether hardware or software.
Features:

+ Easy de facto standard benchmarks for measuring performance.
+ Improve understanding of what is inside your computer.
+ Compare your system with reference systems and results.
+ Check software configuration and settings and much more.
+ Designed especially for Home Users.