# Questions about VGA card for Mac G4.

**URL:** <https://psychtoolbox.discourse.group/t/questions-about-vga-card-for-mac-g4/1298>\
**Category:** Uncategorized\
**Created:** [March 10, 2004, 4:31am UTC](https://psychtoolbox.discourse.group/t/questions-about-vga-card-for-mac-g4/1298 "2004-03-10T04:31:21Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![kimssi35](https://avatars.discourse-cdn.com/v4/letter/k/6de8d8/32.png) [@kimssi35](https://psychtoolbox.discourse.group/u/kimssi35)\
**Post date:** [March 10, 2004, 4:31am UTC](https://psychtoolbox.discourse.group/t/questions-about-vga-card-for-mac-g4/1298/1 "2004-03-10T04:31:21Z")

</div>

My lab members try to find a VGA card which support 200Hz refresh   
rate in 1024 x 768 resolution for our exp..   
  
And we just get the information of Radeon 9800 PRO MAC Edition made   
by ATI. (info is available at   
[http://www.ati.com/products/radeon9800/radeon9800prome/specs.html)](http://www.ati.com/products/radeon9800/radeon9800prome/specs.html))  
  
According to brchure, this support the refresh rate we need, but we   
still don't know 2 things.  
  
Before buying this card, we need to know followings.  
  
1) Has anybody tried this graphic card and managed to get 200Hz   
refresh rate ?  
  
2) Does this card support 10-bit video signal output ? (I can't find   
out this info anywhere in brochure.)  
  
If you know about this graphic card and have tried this, please   
share your knowledge with us.  
  
thanks.