1-12 Technical Information
MPEG is a compression/decompression standard developed by the Motion Picture Experts
Group. MPEG produces full-screen 30 fps, broadcast-quality digital video. The video
controller architecture maximizes the motion video performance and removes bandwidth
bottlenecks to display multimedia data at its full speed.
Graphics Accelerator
The graphics accelerator is specifically designed for graphics-intensive operations, text and
color pixel amplification, and scrolling. The graphics accelerator provides 64-bit, ultra-high
performance for demanding True Color, High Color, and pseudocolor GUI and CAD
applications.
The accelerator minimizes bus traffic by off-loading the tasks normally performed by the
processor. The dedicated bit-block transfers (BitBLT) engine maximizes performance by
speeding the movement of large blocks of image data in video memory.
Video Memory
The system comes with 2 MB of on-board video WRAM, upgradeable to 8 MB. The
standard 2 MB WRAM consists of two devices soldered to the system board. The optional
2 MB or 6 MB of WRAM is mounted on a daughter card that installs in two sockets on the
video board. You can install one or the other type card (2-MB or 6-MB).
With the standard 2 MB of video WRAM, the video hardware supports the following
resolutions, colors, and refresh rates:
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1600 by 1200 pixels, 256 colors, vertical refresh rate of 60-78 Hz and a horizontal
refresh rate of 76-96 Kz
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1280 by 1024 pixels, 256 colors, vertical refresh rate of 60-110 Hz and a
horizontal refresh rate of 63-107 Kz
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1152 by 882 pixels, 256/16.5K colors, vertical refresh rate of 60-120 Hz and a
horizontal refresh rate of 54-110 Kz
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1024 by 768 pixels, 256/65K colors, vertical refresh rate of 60-120 Hz and a
horizontal refresh rate of 48-104 Kz
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640 by 480 pixels, 256/65K/16.7 million colors, vertical refresh rate of 60-200 Hz
and a horizontal refresh rate of 32-100 Kz.