Talk:RIVA 128

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[edit] STB cranked it up

STB produced cards under the 'Velocity' name using the Riva 128 and 128ZX chips with the RAMDAC clocked at 320Mhz. This allowed even PCs with slow CPUs like a Pentium 200MMX to run Quake 2 at 800x600 resolution at 30 frames per second.

RAMDAC doesn't affect 3D speed. It is what allows high refresh rates at high display resolutions. I did a Google search and found that STB Velocity 128 actually had a 230 MHz RAMDAC. That allows the board, with its 4 MB RAM, to run your desktop at 1600x1200 16-bit color at 85 Hz refresh rate. I don't remember seeing 300+ MHz RAMDACs until 1999 or so, with Matrox G400 cards coming to mind.[1] --Swaaye 20:53, 20 April 2006 (UTC)