AIDA32

AIDA32 has shut down the development, but it is still one of the best system information tools.

AIDA32 is a professional system information, diagnostics and benchmarking program running on Win32 platforms. It extracts details of all components of the PC. It can display information on the screen, print it, or save it to file in various formats like HTML, CSV or XML. For corporate users, AIDA32 offers command-line switches, network audit and audit statistics, remote system information and network management.

For Windows.
Via MajorGeeks