HP XU800 - Manual (Page 78)

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3 Interface Cards
Graphics Cards
The diagram below shows the 3Dlabs Oxygen GVX1 graphics card .
Video Memory
The video memory, also known as SGRAM, is a local block of RAM for
holding major data structures: Frame Buffer (double buffer), Z-Buffer and
T-Buffer (Texture Buffer). The Frame Buffer holds one frame steady on the
screen while the next one is being processed, while the Z-buffer stores
depth information for each pixel.
Available Video Resolutions
The number of colors supported is limited by the graphics device and the
video memory. The resolution/color/refresh-rate combination is limited by a
combination of the display driver, the graphics device, and the video
memory. If the resolution/refresh-rate combination is set higher than the
display can support, you risk damaging the display. The table below
summarizes the 3D video resolutions and refresh rates that are supported.
Display resolution Color depth Refresh rates
640 x 480 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
800 x 600 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
1024 x 768 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
1152 x 864 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
1280 x 960 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
1280 x 1024 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
1600 x 1200 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
1920 x 1080 8-bit, 16-bit, True color 100, 85, 75, 60 Hz
1920 x 1200 8-bit, 16-bit, True color 76 Hz
2048 x 1536 8-bit, 16-bit, True color 60 Hz