Voodoo3 2000 = 300 MHz RAMDAC
Voodoo3 3000 = 350 MHz RAMDAC
Voodoo4 4500 = 350 MHz RAMDAC (VSA-100 GPU)
The RAMDAC has absolutely
no impact on processing speed. It's about output quality and defines the sharpness of a certain display mode. E.g. 1280x1024 @75 Hz ~= 100 Mpixels/s requires at least 200 MHz RAMDAC for an acceptable output quality.
It's the chip speed multiplied by chip throughput per clock (depending on architecture), so it's rather:
Avenger:
Voodoo 3 2000: 143 MHz
Voodoo 3 3000: 166 MHz
Voodoo 3 3500: 187 Mhz
VSA-100:
Voodoo 4 4500: 166 MHz + 2nd pipeline
Voodoo 5 5500: 2x 166 MHz + 2nd pipeline
With existing drivers, on the Voodoo 5 the 2nd VSA-100 isn't used at all and on VSA-100 possibly no advantage is taken of the 2nd pipeline either which might be the cause of them actually being slower than Avenger.
