You motherboard doesn't need DDR support, because the video card is what is reading the DDR memory. The only thing your motherboard needs to support is AGP 2.0 (if you want AGP 4x) otherwise just AGP 1.0 (AGP 2x) will work just fine.Asus makes some great cards, I have the Asus V7700 Deluxe. Just check out there web site for the differences, but I can tell you that the GF2 64Meg SDRam MX is probably the slowest, except in special situations that require more than 32 megs of texture memory. Slow by about 20% at the most.
'Pure' means that it has no video out to tv. Basically pure means it has only the basic hardware, no extra features like video in/out or 3d glasses support.
So the fastest card is probably the Titanium.
Best bang for your buck would be an Asus V7100 though. (I think...)
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