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6990+6970 tri-fire...

BaDBoY_uK

BaDBoY_uK

BaDBoY_uK

Soldato
Joined
5 Oct 2009
Posts
5,066
Hey all

I am thinking of changing my top 6970 to a 6990 and having tri-fire.

Hmmmm... is it worth it? Money is not a problem but I don't wish to waste it. My 2x 6970s are pretty good but I like to have new stuff.

Discuss. Question is worth 75% of your final grade :)

Cheers
 
not worth the money outlay imo....go spend some on the woman instead. There's nothing out there that the 6970 xfire couldn't handle
 
Honestly, no. I believe it adds more issues than it solves, what with Crossfire scaling and bugs etc.

I'd honestly stick where you are. :)

I believe Gareth170 has a tri-fire setup with a 6990 and 6970 though, hopefully he'll come across the thread and add his thoughts.
 
subbytna said:
not worth the money outlay imo....go spend some on the woman instead. There's nothing out there that the 6970 xfire couldn't handle
Click to expand...

Haha I am doing that already and she's draining me...
I play ay Eyefinity resolutions mate and my CF 6970s are not perfect. At normal (1920x1200) resolutions, they do pawn!

Tute said:
Honestly, no. I believe it adds more issues than it solves, what with Crossfire scaling and bugs etc.
I'd honestly stick where you are. :)
I believe Gareth has a tri-fire setup with a 6990 and 6970 though, hopefully he'll come across the thread and add his thoughts.
Click to expand...

Hopefully. Thanks
 
BaDBoY_uK said:
Haha I am doing that already and she's draining me...
I play ay Eyefinity resolutions mate and my CF 6970s are not perfect. At normal (1920x1200) resolutions, they do pawn!



Hopefully. Thanks
Click to expand...

I can't see even three 6970 GPUs feeding those monitors though. It's not like you get close to the equivalent performance of three 6970s - I believe the second card scales around 90% but then the third goes down to somewhere in the 70% region?
 
At low resolutions it seems that its better than the 580SLI as well
http://www.anandtech.com/show/4254/triplegpu-performance-multigpu-scaling-part1
Not quite the set up that you are after but should be similar.


If that hardocp review is true then hats of to AMD, they seem to have cracked the crossfire scaling better than nvidia this generation. Will wait for part 2 of that anandtech review first though, they always do a very thorough job
 
You have the screens for it to make a noticable difference, bringing you more playable framerates. If you have the money, why not :)
 
just a thought......why not get a 6990 and quad fire it with the 2 x 6970 and see what you get? if its worth the performance gains then keep it...if not sell 1 x 6970?
 
6990 + 6950/70 runs really well but can be a pain to setup. afew games u won't see much improvement over dual cf, but thats down to cf profiles.
 
Well I currently have the UD7 and use PCI-e slots 1 and 4, 16x and 8x respectively. I do that because airflow is a major factor and if I used both 1 and 3, 16x each, then the temps sky rocket as the cards are together. Unfortunately, slot 2 is removed with one 6970 blocking it. I also have a silly 440 sitting in between in another 8x slot for Physx. Obviously, this would go!

I am reluctant to go 3x6970 because of air flow but I supposed a few extra fans would help. One 6990 in 16x and one 6970 in the 8x would be ideal. If I went 3x6970, I'd use 1, 3 and 4 - 16x, 8x and 8x respectively. I read that 16x vs 8x only gives a few FPS more.... hmmmmmm... decisions

So
3x 6970s, bus = 16x/8x/8x
6990+6970 bus = 16x/16x if next to eachother, or 16x/8x if not

Thanks for your advice chaps
 
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