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9800GT SLI Questions

  • Nvidia
  • SLI
  • Graphics
  • Product
Last response: in Graphics & Displays
January 17, 2010 3:36:05 PM

So I have a couple questions. I currently have a BFG 9800GT 512MB running at 1920x1200 and I run most of my games at or near max settings. I've been debating going SLI for a while now and on a whim looked up cards on Newegg for pricing.

The card in my system is very similar to if not exactly

The card I'm looking at is (I really like the passive cooling idea).

My questions are these:

First, will these 2 cards work if I were to put them into SLI? It's been probably 5 years since I built an SLI system (right when the technology was first released) and I distinctly remember having the understanding that the cards had to be identical. These have the same chipset and the same amount of ram, is that enough?

Secondly, I have a HDTV connected to the secondary DVI on my current card via a DVI to HDMI cable. I don't use it all the time, and typically only for watching movies, etc. The last time I built an SLI system, I recall that if you wanted to use multiple monitors, SLI mode had to be disabled, and that disabling required a reboot. Is this still the case?

I appreciate any help/thoughts that can be provided.

Thanks :) 

More about : 9800gt sli questions

a c 173 Î Nvidia
January 17, 2010 4:26:58 PM

IIRC multiple monitors are now supported by Nv when SLi is enabled in so much as one of the monitors will go blank when an SLi capable app is run.
a b Î Nvidia
January 17, 2010 5:12:05 PM

Should be no problems, SLI is not quite as fussy as it once was but you might want to check the SLI/CF FAQ before proceeding, just to re-familiarise yourself with the pros and cons.
It may be a better option to install a larger, single card with more memory than pair off two 512Mb cards, particularly at such a high resolution.
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a c 173 Î Nvidia
January 17, 2010 6:45:53 PM

I'm running a pair of 8800GT's @ 19 x 10 with good framerates so unless DX11 is a must, a second 9800GT is a viable option I reckon. So long as it's cheap that is.
January 17, 2010 11:38:21 PM

I've been playing the Star Trek Online Open Beta quite a bit this week, I'm running 1920x1200 like I mentioned above have all settings set as high as they'll go except Anistropic Filtering & AA, and it runs pretty well for the part. When lots of ships are on the screen at the same time (and I mean LOTS) I get a little slowdown occasionally. If I can make it run a little more fluidly all the time, I'm certainly not going to complain for $100 :)