What's the state of Quad SLI right now?

Fewmitz · 06-14-2008, 02:21 PM

So, I remember when the GX2 was first released, the Quad SLI feature didn't function properly, or flat out didn't work, or did worse, or any number of things.

I guess the thing I'm asking here is, is it really worth it to get Quad SLI? Or should I just get Two 9800 GTXs? Because I'm still struggling with whether or not I want to upgrade to Vista and get DX10, and if I can cut some off the price, I'd be more than willing.

**emosun** · 06-15-2008, 07:06 AM

Well don't upgrade to vista. It will be a waste since windows 7 is replaceing it. So no need for the headaches.

They have gotten the gx2 to work properly, And if you only have 2 pci-e 2.0 slots then they would be the fastest. Two 9800 gtx's would be a litttle slower , but 3 would be faster. Make sure you have a good psu with 26a on the 12v rail and make it over 800watts for this kind of setup.

**Aus_Karlos** · 06-16-2008, 07:48 AM

They found the problem with the 7950Gx2 (or what ever it was) for Quad SLI on XP is that DX9 "can" only pre-render 3 frames. Even tho many ppl may of come across Nv's pre-render frames, that only applies to how the CPU cues up the frames to be rendered..
So having 4 cards on DX9 was a waste as the 4th was sitting there doing nothing.
Vista's DX10 is able to pre-render 4 frames, so its why "They think" Quad SLI should work.
However if you with to spend that much money on getting another card to only get a 40%-60% performance increase then its ur money.
Im waiting untill they actually start to fix all the problems with Vista and the Nv drivers.
But by then they usually release a new OS and GPU.

06-14-2008, 02:21 PM	#1 (permalink)
Fewmitz Registered User Join Date: Feb 2008 Posts: 60 OS: Windows XP	What's the state of Quad SLI right now? So, I remember when the GX2 was first released, the Quad SLI feature didn't function properly, or flat out didn't work, or did worse, or any number of things. I guess the thing I'm asking here is, is it really worth it to get Quad SLI? Or should I just get Two 9800 GTXs? Because I'm still struggling with whether or not I want to upgrade to Vista and get DX10, and if I can cut some off the price, I'd be more than willing.

06-15-2008, 07:06 AM	#2 (permalink)
emosun Mentor Hardware Team Join Date: Oct 2006 Location: usa Posts: 3,124 OS: xp pro sp2 My System	Re: What's the state of Quad SLI right now? Well don't upgrade to vista. It will be a waste since windows 7 is replaceing it. So no need for the headaches. They have gotten the gx2 to work properly, And if you only have 2 pci-e 2.0 slots then they would be the fastest. Two 9800 gtx's would be a litttle slower , but 3 would be faster. Make sure you have a good psu with 26a on the 12v rail and make it over 800watts for this kind of setup. __________________ Speedfan-->http://www.almico.com/speedfan.php Everest -->http://filehippo.com/download_everest_home Benchmarks-->http://www.tomshardware.com/charts/g...Score,794.html

06-16-2008, 07:48 AM	#3 (permalink)
Aus_Karlos Mentor, Games Team Join Date: Mar 2007 Location: Western Australia Posts: 1,800 OS: Vista Ultimate x64, Windows XP 32-bit/64-bit My System	Re: What's the state of Quad SLI right now? They found the problem with the 7950Gx2 (or what ever it was) for Quad SLI on XP is that DX9 "can" only pre-render 3 frames. Even tho many ppl may of come across Nv's pre-render frames, that only applies to how the CPU cues up the frames to be rendered.. So having 4 cards on DX9 was a waste as the 4th was sitting there doing nothing. Vista's DX10 is able to pre-render 4 frames, so its why "They think" Quad SLI should work. However if you with to spend that much money on getting another card to only get a 40%-60% performance increase then its ur money. Im waiting untill they actually start to fix all the problems with Vista and the Nv drivers. But by then they usually release a new OS and GPU. __________________ MemTest86 / Nvidia Drivers / ATI Drivers / DirectX 9.0c / Sys Requirements / Everest