HP Vectra XU 6/XXX HP Vectra XU 6/xxx, Guide to Optimizing performance - Page 46

1 Your PC's Performance Features More Video Performance The Millennium Video Adapter also implements acceleration for colorspace conversions. This enables the real-time acceleration of video playback. By implementing these acceleration features through hardware the Millennium Video Adapter ensures that they are always available, whatever the operating system, application, or video driver. WRAM Video Memory The key to your Millennium Video Adapter's high performance is the type of video memory it uses: Windows RAM (WRAM). This is a dualported memory, with dedicated interfaces for both the input of pixel data from the graphics controller and the output of data for your display. The advantage of WRAM is that it allows both ports to operate simultaneously, meaning that it can receive new pixel data to be displayed while outputting existing data to the display. This makes WRAM up to 50% faster than previous types of video memory. Increasing Video Memory The Millennium Video Adaptor is supplied with 2 MB of WRAM video memory. This can be increased to 4 MB or 8 MB by fitting an additional 2 MB WRAM or 6 MB WRAM memory module. The 2 MB WRAM module can be ordered from HP. Contact your dealer for information about the 6 MB WRAM module. The amount of WRAM video memory installed on the Millennium Video Adapter determines the resolutions and number of colors your PC is able to display. At any resolution, the amount of pixel data needed to define an entire screen is equal to the total number of pixels to be displayed multiplied by the amount of data required for each pixel. Increasing your display resolution will increase the total number of pixels needed to define an entire screen. Similarly, increasing the number of displayable colors will increase the amount of data required for each pixel. Increasing either of these parameters will increase your requirement for video memory. 40 English