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Old 08-24-2011, 09:33 PM
Mark Knecht
 
Default Any speed issues with dissimilar NVidia cards?

Hi,
On one of my machines here I'm running an NVidia 465GTX card
driving two 1920x1080 monitors in Twinview mode which for reference
produces the following glxgears results:

Default size - Approx. 10K fps
3840 x 1080 - Approx. 1500fps

mark@c2stable ~ $ glxgears
39852 frames in 5.0 seconds = 7970.263 FPS
39793 frames in 5.0 seconds = 7958.562 FPS
48631 frames in 5.0 seconds = 9726.093 FPS
49370 frames in 5.0 seconds = 9873.878 FPS
49139 frames in 5.0 seconds = 9827.710 FPS
25787 frames in 5.0 seconds = 5156.782 FPS
7776 frames in 5.0 seconds = 1555.146 FPS
7703 frames in 5.0 seconds = 1540.542 FPS
7570 frames in 5.0 seconds = 1513.977 FPS
39883 frames in 5.0 seconds = 7976.487 FPS
49839 frames in 5.0 seconds = 9967.718 FPS
49720 frames in 5.0 seconds = 9943.888 FPS
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0"
after 48 requests (48 known processed) with 0 events remaining.
mark@c2stable ~ $

I'd like to add a 3rd monitor, probably a 1280x1024 I have sitting
here, but the 465GTX is out of ports so I was considering buying a
cheap NVidia PCIe card to drive that monitor. The main purpose of this
3rd monitor will be nothing other than watching NetFlix/Hulu in a VM
while working on the two original monitors.

Does anyone have experience with driving 3 or more monitors using
non-identical NVidia cards? Are there any performance issues I need to
be aware of if I put a lower performance card in with the 465? If I
snag an old 8200 type card for $29 will it kill my 465's performance
in any way?

Thanks,
Mark
 

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