SLI and Antialiasing

SLI can end up nearly doubling performance in some cases. In those cases we will see two 6800 GS cards deliver performance on par with a single 7800 GTX. But much more of the time we will see only a modest performance gain from SLI. Since one 7800 GTX costs about the same as two 6800 GS cards, we have to strongly recommend against going with 6800 GS SLI. If performance is desired and the money is there, the 7800 GTX is the better buy by a long shot.

We also generally do not recommend SLI as an upgrade option. The main benefit of multi-GPU technology these days is to increase the maximum performance beyond the fastest single card on the market. ATI and NVIDIA have kept upgrade cycles fairly consistent over the past few years. It makes sense to spend money on a card that will bring increased performance and more features to a system when a new generation of GPU comes out rather than augmenting an aging card with another of the same type. Another argument against SLI-as-upgrade for the 6800 GS in particular is that we have no idea how long the card will be in production.

The memory bandwidth of the 6800 GS makes antialiasing possible on most games at 1280x1024 and below. At higher resolutions, AA performance might not be where we would like. Games like Half-Life 2 will certainly run fine on a 6800 GS with AA enabled at 1600x1200. But the SC:CT and BF2 tests we ran show that the 6800 GS just doesn't have what it takes to make 1600x1200 with 4xAA a reality.

For those who wish to enable AA at higher resolutions, a beefier card would do the trick. The 7800 GT is a good value right now for those with these needs. For users with 1280x1024 panels, or who run at lower resolutions with AA enabled, the 6800 GS is a good fit.

Splinter Cell: Chaos Theory Final Words
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  • Slaimus - Tuesday, November 8, 2005 - link

    I have had mine for a year. It is called 6800 AGP + softmod
  • Donegrim - Wednesday, November 9, 2005 - link

    Without the GDDR3 memory though. You can't unlock upgraded memory.
  • Missing Ghost - Monday, November 7, 2005 - link

    Can I get this in AGP?
  • bob661 - Monday, November 7, 2005 - link

    The one on Monarch is PCIe.
  • JarredWalton - Monday, November 7, 2005 - link

    NV42 = PCIe only, unless they bridge back to AGP. I seriously doubt that will happen, but 6800GT AGP cards are slightly cheaper than PCIe versions already.
  • yacoub - Monday, November 7, 2005 - link

    "today sees the introduction of a part that performs just as well as the 6800 GT but costs about $100 less."

    Uhm, 6800GTs cost around $280, maybe less as I haven't checked in a few days, so you must be implying that I can get a 6800GS for $180. If that's true, then that's more reasonable.
  • LoneWolf15 - Monday, November 7, 2005 - link

    And in the same vein:

    quote:

    The X800 XL makes a good showing in this benchmark as it performs just ahead of the 6800 GS and GT. While this would be fine if only competing against the 6800 GT, the X800 XL suffers a disadvantage when competing against the much cheaper 6800 GS.


    To go back to the beginning of the article:

    quote:

    This upper midrange, sub $250 part is NVIDIA's answer to the X800 GTO and the as of yet unavailable X1600 line up.


    The X800XL's lowest retail price on pricewatch is $245. Where would one be saving money at this point buying a 6800GS, assuming you could actually purchase one today?

    P.S. I find it likely that the price of the X800XL will be lowered even further to compete.
  • yacoub - Monday, November 7, 2005 - link

    Still waiting to see a reply to this or a correction in the article's conclusion regarding the X800XL and supposed $100 price gap b/w GS and GT. =P
  • DrZoidberg - Monday, November 7, 2005 - link

    I think when u say $280 for 6800GT this is not the recommended price set by nvidia (MSRP) but the cheapest online price, im sure the MSRP for 6800GT is around $320, just like u can get 6800GS for less than the MSRP price of $250, $209 at newegg.
  • bob661 - Monday, November 7, 2005 - link

    Some of you guys are some non-reading bitches. Scroll up and you'll see Derek's link to where you can buy this card TODAY for $229.

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