I am working on a project that needs 8 high speed displays. Given the number of heads, I need to find dual or better display cards for PCI.
Currently I am working with the G550 card but the speed is not impressive. It ‘feels’ like the G550 does not support many of the functions I want in hardware.
Can anyone suggest a better OpenGl supported card for a Redhat 9.0 core system? As it stands now I will have to tie two 4 head systems together due to speed constraints.
Without knowing your application needs, it’s sort of hard to suggest anything.
If you aren’t doing much I/O to/from the cards (texture uploads, readbacks, etc), then PCI will probably be OK for you, but if you are transmitting a bunch of data, then the PCI bus could easily be your bottleneck – especailly with 2 or more cards.
There is a 4 slot PCI-e motherboard “out there” – not sure if you can actually buy it or not - that would definitely help with the bandwidth issues.
As for cards, I’ve had generally good luck with the nVidia based cards. If your performance problem is in fact a hardware support issue, then a newer low-mid range nVidia (or ATI, I’m sure) card should do the trick. If it’s not a support issue, and just a muscle issue, you’ll have to pay more attention to the card that you pick. The lower end cards may (more or less) have the same capabilities as the high end cards, but they don’t have the brute strength of the big boys (number of vertex and pixel pipes, the clock rates, the memory bandwidth…)
I’ll warn you about the dual PCI-express setups (and presumably quad as well - and maybe regular PCI too). I have had a lot of trouble getting this to work on an SMP motherboard. Very unstable (not usable) – the newest nVidia drivers (very recent) don’t fix the problem.
It seems to work with non-SMP setups, though.
Good luck
-Steve
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