To run Vista Business SP2 effectively on a 32-bit (x86) architecture, your system ideally met these "Premium Ready" standards: 1 GHz 32-bit (x86) or 64-bit (x64) processor.
Enhanced Wi-Fi performance and added native support for recording data to Blu-ray media.
A DirectX 9-capable processor with a WDDM driver and at least 128 MB of memory to support the Aero Glass interface.