What+are+the+system+requirements+to+run+Windows+Vista?

What are the system requirements to run Windows Vista? Microsoft published two sets of system requirements for Vista. They are:

- A modern processor (at least 800MHz)
 * Windows Vista Capable PC:**

- 512 MB of system memory

- A graphics processor that is DirectX 9 capable

- Windows Vista Premium Ready PC

- 1 GHz 32-bit (x86) or 64-bit (x64) processor

- 1 GB of system memory

- Support for DirectX 9 graphics with a WDDM driver, 128 MB of graphics memory (minimum), Pixel Shader 2.0 and 32 bits per pixel

- 40 GB of hard drive capacity with 15 GB free space

- DVD ROM Drive

- Audio output capability

- Internet access capability


 * My opinion:** The "Windows Vista Premium Ready PC" requirements are close to the absolute real minimum requirements, except that the CPU requirements are too low. A real minimum would probably be around 2 GHz for a single-core processor, while a dual-core processor could possibly get away with 1.8 GHz