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6990 + 6970 Trifire My Tests - Page 2

post #11 of 18
Quote:
Originally Posted by jamborhgini313 View Post

dude just look around. alot of sites pop up if you google 7970 crossfire review. heres one for example: http://www.guru3d.com/article/radeon-hd-7970-crossfire-review/

There's a HUGE difference between a stock 6990, and a Tri-fire setup with a 6990 + 6970 running @ 950/1375+. At those clocks A Tri-fire 6970 setup like my own scores EXACTLY same in 3dmark11 as 2 7970s at stock do. I get around 14k 3dmarks and so does a 7970 CF stock setup. Sure you can OC them both futher, but the point is, a Tri-Fire 6970 setup OC'd midly is right on par with 2 7970s at stock. Much less FOUR 6970s... you've gotta be outta your mind to think that FOUR 6970s at stock or higher speed perform identically to 2 7970s.

The 7970 is only ~40% better than the 6970 stock for stock. Therefore 2 of them roughly equates to 3 6970s due to scaling percentage ratios of both.
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post #12 of 18
I had exact setup before upgrading. BF3 ran perfectly fine maxed out even with AA. Something has to be up with your drivers.
post #13 of 18
Quote:
Originally Posted by Hoodz View Post

6990 +6970 Trifire at overclocked speeds
338
Min, Max, Avg Frame rate
112, 161, 131

Those are really good results! I run 2XAA and mostly play 64 man servers but on the BTK maps I find it can be harder on performance. I definitely see lower framerates than you but then again you've got a much better overclock on your cpu (and HT) and your gpus so everything looks good.

I know what you mean about disappointment, it sucks having this hardware and wanting to maintain 120fps/120hz without dropping the eye candy. Fact is the 6000 series aren't great with AA in BF3 but look at those numbers you are still getting amazing results.

IMO hold onto that Tri-fire build until the 7990 comes out maybe by then drivers for the 7000 series won't be so messed up and Nvidia might have something big out then if you're still unhappy you can swap it for something more powerful without spending too much.
Edited by OmegaRED. - 2/20/12 at 9:02pm
    
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post #14 of 18
Quote:
Originally Posted by WizrdSleevz View Post

wait & your disapointed? Time to overclock those beasts further & turn on AA.
This setup will out perform 2 7970's.

Sorry but my xfire 7970's mildly overclocked get the same avg fps WITH AA as the overclocked tri-fire. I had this exact setup he's testing here... it was good shizzle, but the new technology is pwning biggrin.gif

OP, not harping on your tests, when I had tri-fire 6 series it was nice thumb.gif
    
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post #15 of 18
Quote:
Originally Posted by MrWhiteRX7 View Post

Sorry but my xfire 7970's mildly overclocked get the same avg fps WITH AA as the overclocked tri-fire. I had this exact setup he's testing here... it was good shizzle, but the new technology is pwning biggrin.gif
OP, not harping on your tests, when I had tri-fire 6 series it was nice thumb.gif


I believe it, 7970CFX@1200core pretty much guarantees it'll beat any 6000 series Tri-fire setup. Not many people are able to reach those overclocks with 7970's though but you did it with both cards. thumb.gif

That's why I haven't upgraded from Tri-fire 6990/6970 to CFX 7970 if I get stuck with cards that don't overclock well I won't get any better performance than what I have now.
    
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post #16 of 18
Quote:
Originally Posted by m3t4lh34d View Post

There's a HUGE difference between a stock 6990, and a Tri-fire setup with a 6990 + 6970 running @ 950/1375+. At those clocks A Tri-fire 6970 setup like my own scores EXACTLY same in 3dmark11 as 2 7970s at stock do. I get around 14k 3dmarks and so does a 7970 CF stock setup. Sure you can OC them both futher, but the point is, a Tri-Fire 6970 setup OC'd midly is right on par with 2 7970s at stock. Much less FOUR 6970s... you've gotta be outta your mind to think that FOUR 6970s at stock or higher speed perform identically to 2 7970s.
The 7970 is only ~40% better than the 6970 stock for stock. Therefore 2 of them roughly equates to 3 6970s due to scaling percentage ratios of both.

There. You have to OC them to match 2 7970's stock. I can do the same and have my 7970's match 6990's then or even beat it since quad Crossfire doesn't even scale that good
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post #17 of 18
Thread Starter 
I think im gonna jump to nvidia when kepler comes out. Only cause i have had so many driver issues. Since i pulled out my trifire set up for 2x 550gtx ti in sli game play has been like a dream.
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post #18 of 18
Quote:
Originally Posted by Hoodz View Post

I think im gonna jump to nvidia when kepler comes out. Only cause i have had so many driver issues. Since i pulled out my trifire set up for 2x 550gtx ti in sli game play has been like a dream.

Sucks to hear that, I'd be freakin' pissed if I had to downgrade to any less than GTX 580 SLI. AMD drivers are a mess but I've never had any issues playing all the top games on the 6990 which is why I added the 6970 and it didn't get any worse. I've put in 110 hours in both BF3 and Skyrim alone and all my crashes were due to the games themselves. Right now both are rock solid as are all my other games. Only reason I would swap out my Tri-fire would be for more performance.
    
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