1.3. Hardware Requirements
Windows Vista requires considerable hardwaresignificantly more than previous versions of Windows. It needs a lot of graphics horsepower to support the full Aero interface, but it is possible to run Windows Vista without running Aero.
Because there are so many different versions of Windows Vista, and because it is possible to run Windows Vista without the Windows Aero interface, the exact hardware requirements are somewhat confusing. To help make things a little less confusing, Microsoft has set two levels of hardware: Windows Vista Capable and Windows Vista Premium Ready. A Windows Vista Capable PC will not be able to run all of the Windows Vista features, notably Windows Aero.
A Windows Vista Capable PC has these minimum hardware requirements:
A Windows Vista Premium Ready PC has these minimum hardware requirements:
Obviously, more is better, so it's a good idea to exceed these requirements when possible.