• Advertisement
Sign in to follow this  

ATI cards used for physics

This topic is 4336 days old which is more than the 365 day threshold we allow for new replies. Please post a new topic.

If you intended to correct an error in the post then please contact us.

Recommended Posts

Check out this article: http://enthusiast.hardocp.com/article.html?art=MTA3OSwxLCxoZW50aHVzaWFzdA== ATI is saying that you can use their 'older' graphic cards as a physics accelerator which will be faster than ageia's Now I was wondering, if I were to use 3 graphics cards instead of one, would that allow for 3x rendering speed, given some optimizations on ati's side? (no physics involved)

Share this post


Link to post
Share on other sites
Advertisement
An article I was reading a while back (I don't remember the source), nVidia mentioned using the unused onboard motherboard graphics card (assuming you have installed a seperate agp/pci-e card) as a physics processor.

Share this post


Link to post
Share on other sites
Quote:
Original post by ozmic66
Check out this article:
http://enthusiast.hardocp.com/article.html?art=MTA3OSwxLCxoZW50aHVzaWFzdA==

ATI is saying that you can use their 'older' graphic cards as a physics accelerator which will be faster than ageia's

Now I was wondering, if I were to use 3 graphics cards instead of one, would that allow for 3x rendering speed, given some optimizations on ati's side? (no physics involved)


If the driver allows you to use all 3 cards in the same machine, then you can write an application that takes advantage of them. However, without explicit driver support, the 3 results will appear on 3 different outputs. In that case you have to manually copy the resulting images into the main card's framebuffer, which results in a performance loss. When the hardware support output merging (sli or similar), then there is no loss in performance. For a game that doesn't support multiple graphics cards, the performance increase is usually less than what is expected. (around +50% for the 2nd and +25% for the 3rd card)

Viktor

Share this post


Link to post
Share on other sites
Sorry, double post... There is a bug in the code of the site when used with opera. (It posts the text but takes you back to the edit screen.)

Share this post


Link to post
Share on other sites
Sign in to follow this  

  • Advertisement