GeForce 8800 GT MultiGPU Scaling

It will still be quite a while before we see multiGPU solutions provide the stability and consistency of a single GPU. For those interested, though, NVIDIA has left enough of an opening in their product line up this time around that SLI actually makes sense as a high end solution rather than just a potential upgrade path.









With the elimination of the 8800 GTS lineup, and the fact that performance of the 8800 GT is much faster than half the speed of the 8800 GTX, 8800 GT SLI looks pretty good under games that scale with SLI. Not only that, but 2x 8800 GT cards will cost, at most, as much as an 8800 GTX. Once the price of the 8800 GT approaches $200, as we expect it to, the price of a solution faster than the 8800 GTX will be available for much less money.

We do have to keep in mind that not everything scales with SLI, and we still have the occasional minor problem with stability or consistency. The scaling issue can be eased through the use of SLIAA in games that are able to benefit.

Out with the Old, In with the New: 8800 GT vs. 7950 GT and 1950 XT Power Consumption
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  • Spacecomber - Monday, October 29, 2007 - link

    Test Reply
  • EateryOfPiza - Monday, October 29, 2007 - link

    What kind of G92 variants can we expect by Christmas 07?

    Or Summer 08?
    Reply
  • mpc7488 - Monday, October 29, 2007 - link

    ardOCP is reporting that nVidia is increasing the 8800GTS stream processors to 112. Reply
  • Spacecomber - Monday, October 29, 2007 - link

    Testing ;-) Reply
  • Spacecomber - Monday, October 29, 2007 - link

    It appears that it was the bracketed h that was hiding all subsequent text. It needed a bracketed /h to close that "feature". Reply
  • mpc7488 - Monday, October 29, 2007 - link

    Haha - thanks. I guess if anyone wants the explanation of the stream processors they can highlight the 'hidden message'. Reply
  • mpc7488 - Monday, October 29, 2007 - link

    I'm not sure why the first post lost my text unless it was the bracket I used around the H - but HardOCP is reporting that nVidia is changing the 8800GTS 640 MB to have 112 stream processors. Reply
  • mpc7488 - Monday, October 29, 2007 - link

    Great article Derek - I think you can tell you're mildly excited about this product :)

    Is there a reason that you didn't do any tests with anti-aliasing? I would assume that this would show more deviation between the 8800GTX and the 8800GT?
    Reply
  • chizow - Monday, October 29, 2007 - link

    Nice job as usual Derek!

    Just wondering though, if you were able to test the cards at the same clock speeds. The GT by default has @100MHz advantage on the core over the GTS, which is a common reason the GTS falls so far behind in head to head testing. I expect the GT to have more OC'ing headroom than the GTS anyways, but it would be nice to see an apples to apples comparison to reveal the impact of some of the architecture changes from G80 to G92. Of note, the GT has fewer ROPs and a smaller memory bus but gains 1:1 address/filter units and 16 more stream processors.

    Also, I saw an early review that showed massive performance gains when the shader processor was overclocked on the GT; much bigger gains than significant increases to the core/memory clocks. Similar testing with the GTS/GTX don't yield anywhere near that much performance gain when the shader core clock is bumped up.

    Lastly, any idea when the G92 8800GTS refresh is going to be released? With a 640MB GTS this seems more of a lateral move to an 8800GT, although a refreshed GTS with 128SP and all the other enhancements of the G92 should undoubtedly be faster than the GTX...and maybe even the Ultra once overclocked.
    Reply
  • Hulk - Monday, October 29, 2007 - link

    I'm looking to build a HTPC and this would be a great card if it does video decoding? Reply

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