When Vista was released, Microsoft learned in a painful way that a new version of Windows should not be hungry for much higher hardware. Therefore, Windows 8 will follow the trend started with Windows 7 and will not demand more powerful computers.
Users who use Windows 7 bwz. Vista can run easily on your computer, so you should not face any performance problems with Windows 8.
In general, Windows 8 should adapt to the available hardware: If, for example, a touchscreen display is connected, the corresponding touch surface of Windows 8 should also be activated. Michael Angiulo, Vice President of Microsoft, said during Computex in Taiwan: Windows 8 will run on hundreds of millions of PCs with different screen resolutions.