Nvidia Geforce 7800 GTX

[Fyrin]

Has anyone here ever gotten two 7800 graphic cards and linked them?

[VioletSkye]

I've built several gaming machines with dual 7800's.

[Blitzkommando]

My current motherboard is incompatable with SLI or Crossfire, however, I am hoping to get a 7800 soon. I am a bit curious why you ask though. Is it for performance? I would assume reviews and benchmark results using them would be better than asking here. Reason being, much of PSOW seems to be almost purely console gamers or lower to mid end compters.

[Fyrin]

On 2005-09-28 13:21, VioletSkye wrote:
I've built several gaming machines with dual 7800's.



I also build gaming machines but not with dual 7800's. I was wondering how much of a performance difference there is with dual 7800's compared to a single 7800.

[VioletSkye]

On 2005-09-28 14:17, Fyrin wrote:


On 2005-09-28 13:21, VioletSkye wrote:
I've built several gaming machines with dual 7800's.



I also build gaming machines but not with dual 7800's. I was wondering how much of a performance difference there is with dual 7800's compared to a single 7800.


Depends on the application and how scalable it is. Some things do run close to 2x better whereas other things will yield minimal if any improvements. As Blitz already mentioned, you may want to look at specific Benchmark and Aquamark results. Sites like HARDOCP (http://hardocp.com/) and GURU of 3D (http://www.guru3d.com/) have quite a few articles on SLI setups and benchmark results. You may also want to look into ATI's Crossfire setup as well to get a feeling for what it is and how it compares to SLI.

Here is a descent article that covers the basics: CROSSFIRE (http://hardocp.com/article.html?art=ODE1).

On a side note (for gamers) it looks like SLI has the advantage atm considering that with Crossfire the maximum resolution and refresh rate you can use in your games is 1600x1200 at 60Hz (nasty http://pso-world.com/images/phpbb/icons/smiles/icon_frown.gif ) There is also no support for high widescreen resolutions at all with this limit.

<font size=-1>[ This Message was edited by: VioletSkye on 2005-09-28 14:34 ]</font>

[Fyrin]

On 2005-09-28 14:24, VioletSkye wrote:


On 2005-09-28 14:17, Fyrin wrote:


On 2005-09-28 13:21, VioletSkye wrote:
I've built several gaming machines with dual 7800's.



I also build gaming machines but not with dual 7800's. I was wondering how much of a performance difference there is with dual 7800's compared to a single 7800.


Depends on the application and how scalable it is. Some things do run close to 2x better whereas other things will yield minimal if any improvements. As Blitz already mentioned, you may want to look at specific Benchmark and Aquamark results. Sites like HARDOCP (http://hardocp.com/) and GURU of 3D (http://www.guru3d.com/) have quite a few articles on SLI setups and benchmark results. You may also want to look into ATI's Crossfire setup as well to get a feeling for what it is and how it compares to SLI.

Here is a descent article that covers the basics: CROSSFIRE (http://hardocp.com/article.html?art=ODE1).

On a side note (for gamers) it looks like SLI has the advantage atm considering that with Crossfire the maximum resolution and refresh rate you can use in your games is 1600x1200 at 60Hz (nasty http://pso-world.com/images/phpbb/icons/smiles/icon_frown.gif ) There is also no support for high widescreen resolutions at all with this limit.

<font size=-1>[ This Message was edited by: VioletSkye on 2005-09-28 14:34 ]</font>

Thanks for the info Violet.

[VioletSkye]

My pleasure. Make sure that if you are wanting an SLI setup using a 6600 GT or above Nvidia card that you have a SLI supported mobo. The mobo comes with the SLI Connector. Also make sure (at least for now) that you are using two identical cards (as in same manufacturer, model etc.) In a future driver release you will be able to use two different brands of cards as long as the GPU model type is the same. I can't think of anything else important to add, but if I do I'll update my post http://pso-world.com/images/phpbb/icons/smiles/icon_smile.gif

<font size=-1>[ This Message was edited by: VioletSkye on 2005-09-28 15:24 ]</font>

[Fyrin]

On 2005-09-28 15:18, VioletSkye wrote:
My pleasure. Make sure that if you are wanting an SLI setup using a 6600 GT or above Nvidia card that you have a SLI supported mobo. The mobo comes with the SLI Connector. Also make sure (at least for now) that you are using two identical cards (as in same manufacturer, model etc.) In a future driver release you will be able to use two different brands of cards as long as the GPU model type is the same. I can't think of anything else important to add, but if I do I'll update my post http://pso-world.com/images/phpbb/icons/smiles/icon_smile.gif

<font size=-1>[ This Message was edited by: VioletSkye on 2005-09-28 15:24 ]</font>

Yeah, I know about the SLI setup for 6000 series graphic cards but I don't know anything about crossfire.
There is Asus A8N-E SLI motherboard that I heard is pretty good.

[VioletSkye]

Thats an excellent Mobo. I've always had good luck with ASUS. It's also a good overclocking board. You going with the AMD board right? http://pso-world.com/images/phpbb/icons/smiles/icon_razz.gif

<font size=-1>[ This Message was edited by: VioletSkye on 2005-09-28 16:54 ]</font>

[Fyrin]

On 2005-09-28 16:53, VioletSkye wrote:
Thats an excellent Mobo. I've always had good luck with ASUS. It's also a good overclocking board. You going with the AMD board right? http://pso-world.com/images/phpbb/icons/smiles/icon_razz.gif

<font size=-1>[ This Message was edited by: VioletSkye on 2005-09-28 16:54 ]</font>


Yeah, I gots to get that. AMD Athlon 64 4000+ processor (Venice)