View Full Version : 8800 spanning across 4 monitors with 2 cards

11-09-2006, 11:35 AM
Sorry about the poorly-worded title.

If I want to output to four monitors with a dual 8800GTX setup, can I expect normal behaviour and performance when spanning a window across all four displays at once?

Will MAX_TEXTURE_SIZE be increased to 8192, so FBOs will be usable at greater than 4096x4096?

The TripleHead2Go offers such poor resolution that I don't think it's a option for me.

11-09-2006, 11:45 AM
If you create 2 windows each one spanning 2 displays connected to 1 GPU, I guess then it should be just fine, since this functionality is already supported with 7800 GTX

11-09-2006, 12:02 PM
Thank you, but I already know that two windows will work. :)

From an ease-of-use perspective, I need to know if I can just create a single window across all the monitors, and have things work.

Knowing if the viewport/texture size is now 8192 is also important for the same reason.

11-09-2006, 01:11 PM
I believe it does not depend on texture size since they are two different hardware devices and you are talking about using them in SLI compatibility mode. Yeah I agree it would be helpfull to me also to have that functionality without having to deal with multiple rendering contexts and switching between them.

11-09-2006, 11:01 PM
That's probably not the optimal approach.

You're taling about rendering to a huge viewport, even if it works, huge viewports can have unseen consequences for example guard band size, clipping and every SLI mode has a tradeoff, e.g. cache coherency.

Texture size is not tied to viewport size in any way unless unless you have some unstated requirement.