nVidia card and Mac drivers

1
Hi All,

Does anyone have experience of vertical refresh rates achievable
using the video drivers that come with the latest generation of Mac
G4 models - those with the nVidia GeForce graphics card?

We are at the point where we are thinking of switching full time from
our present VSG system, to the Psychophysics Toolbox under Matlab 5.2
IF we can achieve a high enough frame rate to work with insect vision
(minimum of 180Hz, but preferably 200Hz). A number of standard CRTs
now support 180 or 200 Hz vertical refresh, but the ATI drivers on
our older blue and white G3 mac won't go more than 120 Hz.

cheers, Dave
--
**********
* * Dr David C. O'Carroll
* \/ * Department of Physiology
* ___ 00 ___ * Adelaide University
* <___>[]<___> * S.A. 5005, Australia
* ^||^ * PH +61 8 8303 4435 Mobile 0418 884 388
* () * FAX +61 8 8303 3356
* * http://faculty.washington.edu/~davidoc/
**********
2
> Does anyone have experience of vertical refresh rates achievable
> using the video drivers that come with the latest generation of Mac
> G4 models - those with the nVidia GeForce graphics card?

No. However we have been using Villagetronic's MP860 and MP960 cards for
Macs that support a frame rate of 200 Hz at 1024 x 768 resolution.
www.villagetronics.com

> [...] A number of standard CRTs
> now support 180 or 200 Hz vertical refresh, but the ATI drivers on
> our older blue and white G3 mac won't go more than 120 Hz.

Which monitors are those? The fastest I could find when I looked last
year were 160 Hz (which we use with the VillageTronics cards). We looked
for a monitor that could support 200 Hz, but there did not seem to be any.

keith