Webcam Diagnostics
Webcam Diagnostics is a simple assistant which gathers many system and webcam-related information in a single place. It makes it easy to identify driver installation problems or USB issues: red circles will signal serious issues and yellow triangles will signal minor issues. Right-click a reported issue to access the context menu and click the Fix menu (if available) so that the program attempts to fix the issue or shows you a possible way to fix it.

Webcam Diagnostics can report USB issues like overcurrent or bandwidth shortage. It can also tell whether your system is correctly configured to handle a webcam (e.g. processor fast enough, recent DirectX runtime, optimal display color depth, etc.)

If you are ensure if your system meets the requirements I recommended you to run the wizard before installing your webcam.
I plan to enhanced the program over the time to bring additional features and to improve the analysis. Your suggestions and feedback are very welcome. Please note though that the program may not be able to identify buggy drivers.