graphics accelerator cards help processing speed?

[Jon Bronson]

I've heard that increasing the perfdormance of your graphics card helps Pro tools function faster. Is this true? Which ones do you recommend?

Also, if I wanted to run two monitors side by side, would I need to get a second graphics card? or a new one that support the two?

Is there a big difference between VGA and DVI/ADC?

[tony @ Andy Glen Music]

i'm sitting here at a new Mirrored Drive Door 867 G4 with 128Mb Graphics ram upgrade. Visually, it flies, you'll notice this with things like automation. I can also run a very hi-res quicktime movie on the second monitor with no effect on the PT graphics. Something like an NVIDIA GForce 4 dual graphics card would be fine. I'm looking at outputs from one of these (1 via adc and the other dvi on 2 vda monitors) and I can't see the difference at all.

There are no benefits to track count or DSP ability

[mBoxLuvr]

Ive only seen this benefit with our TDM system here at work. Its on a G4 and we found problems with using a cheapo card sitting in the farm card box. Of course you wont notice this problem unless your dealing with QT and Protools at the same time.
The fix was a dual (latest and greatest) AGP ATI for the G4.
The only benefit as far as high end cards go are in Graphics, 3D and sometimes DV.
Audio not really.