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[[H]ard|OCP] NVIDIA 3-Way SLI and AMD Tri-Fire Redux - Page 11

post #101 of 168
Quote:
Originally Posted by PoopaScoopa View Post
If you only use 2 PCIe slots, the WS Revolution uses dual 16x16x not 8x8x.
Other users have mentioned this in this thread, and on the H forums, and the manual was even quoted as saying it defaults to x8x8 with 2 cards.

Quote:
Originally Posted by 2010rig View Post
You know, you're probably right.

If the board defaults to x8 x8, the only noticeable impact ( although very small ) is at this high resolution:
http://www.hardocp.com/article/2010/...6x16_vs_x8x8/2

I'm going to do more research on that board, because with only 2 cards, they should be running at x16 x16, at least, according to ASUS that is:
right, but this was already quoted, and JCP said the manual states it defaults to x8x8 with 2 cards installed.
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post #102 of 168
RoG Xpander FTW!
    
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post #103 of 168
read the manual, page 2-9 seems to imply that dual card mode is x8/x8.
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post #104 of 168
Quote:
Originally Posted by ryboto View Post
read the manual, page 2-9 seems to imply that dual card mode is x8/x8.
That means a 6990 is running at x4/x4 since it splits an x8. Now AMD is PCI-e bandwidth starved this time.
post #105 of 168
GPUz reported 6990+6970 was running x16/x16 and 3-way SLI was running x16/x8/x8

We have inquires into AMD about F1, personally I think its just a software issue, it was the only game that was slower in our testing. BC2 I wouldn't call slower, .9 FPS avg is within the margin of error for real-world real-time run-throughs, so performance was essentially identical between systems in that game on Tri-Fire

Thanks for the feedback everyone. We will be doing more evaluations of this nature, including 3x reference card 6970 Tri-Fire
post #106 of 168
Quote:
Originally Posted by BrentJustice View Post
GPUz reported 6990+6970 was running x16/x16 and 3-way SLI was running x16/x8/x8

Thanks for the feedback everyone. We will be doing more evaluations of this nature, including 3x reference card 6970 Tri-Fire.
Good work.

How about a quick Vantage run, lets see which set up uses more cpu time.

In the past ATI always had a lower CPU score when compared to Nvidia.
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post #107 of 168
Hey, Brent: RoG Xpander.
    
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post #108 of 168
Quote:
Originally Posted by BrentJustice View Post
GPUz reported 6990+6970 was running x16/x16 and 3-way SLI was running x16/x8/x8

We have inquires into AMD about F1, personally I think its just a software issue, it was the only game that was slower in our testing. BC2 I wouldn't call slower, .9 FPS avg is within the margin of error for real-world real-time run-throughs, so performance was essentially identical between systems in that game on Tri-Fire

Thanks for the feedback everyone. We will be doing more evaluations of this nature, including 3x reference card 6970 Tri-Fire
Uh hi, Brent you probably won't check this board that much and see this post, but, have you considered re running the SLI numbers again?

We clearly know that the 6990+6970 should be more powerful, but since you have the setup, you think you can just pull one of those GTX 580s out and see if that improves some of the plain old SLI scores the same way? It looks like SLI on this setup may be getting pretty darn close in numbers to the 6990+6970 setup.

I also see you are working on Quads and TRIs with the 6970 cards, so I won't expect much since you are probably busy but, you can also overclock both cards too, food for thought.
Edited by RagingCain - 5/3/11 at 9:43pm
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post #109 of 168
Quote:
Originally Posted by UrbanSmooth View Post
Hey, Brent: RoG Xpander.


It adds the nf200 (two) so its like using a mb with native nf200 chip. Its just is more practical to use a mb with one a built in nf200 chip as opposed to the rog expander. Plus, SB goes like stink, me likes a lot

edit: really, the rog expander was Asus' band-aid to not doing the R3E properly in the first place.
post #110 of 168
Quote:
Originally Posted by pursuinginsanity View Post
It's not an NForce chipset. It's an Intel P67 chipset. The NF200 is just a lane spliiter, as has been repeated over 9,000 times already.

It benefits the AMD system, too.

Hopefully [H] learned their lesson, and stop doing multi-high-end GPU reviews with 3.6ghz 920s.
Same difference. An ATI GPU will still perform better on an AMD 890 than a intel P67/X58 (?)
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