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post #11 of 18
Quote:
Originally Posted by Arizonian View Post
Two AMD 6870's crossfired will be a bit better than one AMD 6970 or slightly over a GTX 580 performance. A great price/performance ratio.

AMD cards do better crossfire with 6950's or higher. In December of 2010 I had two 6870's and had micro stutter when pushed in Crysis.

Here's a great article I was turned onto (Aug 2011) to read regarding AMD's scaling and why it does better in scalability by cutting corners to do it. They get better with higher GPU performing cards 6950 and up.

CrossFire, SLI, And Micro-Stuttering - read the "CrossFire With Two Cards" paragraph if nothing else.

An AMD 6950 2GB unlocked or a GTX 560Ti 2GB heavily over clocked will do a great job as a single GPU solution and come close to accomplishing what your looking for at your price range. You can always crossfire/SLI a second down the road.

As for the question do 6950's unlock, it is getting less and less. A great choice that comes with the BIOS switch and 100% going to unlock is the Sapphire Toxic AMD 6950 2GB. Another great card that can over clock to compare in performance on the Nvidia side would be the MSI GTX 560Ti 2GB TwinFrozr II. Both hard to get, either will be great and right at your budget.

The only single GPU cards that will get your best performance in BF3 that your looking for would be an over clocked 6970 or 580 even more so. Both out of your price range.

AMD does better in BF3 with High settings 4XMSAA off and Nvidia does better in Ultra settings with 4xMSAA on.

I'd have suggested wait until the next gen cards come out, but I'm assuming you've been wanting to play BF3 since release. The next gen cards start to trickle out with lowest GPU's first end of December (just before Christmas) and leading to the big boys after the first of the year is the speculation.

Good luck in deciding. I'm sure you'll get a bunch of varying opinions on the matter. In the end, it's your choice. Do your homework.

PS...edited to add: I just noticed your new....Welcome to OCN!
^this. And don't let bad drivers/crossfire issues with BF3 turn you off from any solution, the game is new, they will iron out they problems (the big ones at least). And yes, your PSU is sufficient for anything that has been mentioned.
post #12 of 18
Reference 6970 is my personal recommendation. It has dual Volterra Digital PWM's for power delivery, meaning no VRM to worry about. Superior to Analog solutions in terms of effectiveness, while offering accurate voltage reading.

See those grey boxes on the right? Those are it, CPL modules.



Other hand, this is a 570 with a half assed 4 Analog phase out of 6 design




Also, these cards have 2 GB vRAM and better CF Scaling to future proof. And while doing these, they pull less power. Here's one.

http://www.pccasegear.com/index.php?...ducts_id=16298
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post #13 of 18
Thread Starter 
Quote:
Originally Posted by Johnny Doe View Post
Reference 6970 is my personal recommendation. It has dual Volterra Digital PWM's for power delivery, meaning no VRM to worry about. Superior to Analog solutions in terms of effectiveness, while offering accurate voltage reading.

See those grey boxes on the right? Those are it, CPL modules.



Other hand, this is a 570 with a half assed 4 Analog phase out of 6 design




Also, these cards have 2 GB vRAM and better CF Scaling to future proof. And while doing these, they pull less power. Here's one.

http://www.pccasegear.com/index.php?...ducts_id=16298
i probably will never end up crossfiring a $365 card. the thing with crossfiring down the road will be that i am in the same situation as i am at the moment
--->crossfiring a hd4890 is completely pointless....

gtx 570 seems to have better performance than the 6970 while being a bit cheaper i dunno..
    
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post #14 of 18
570's offer tiny bit better performance, but they **** out with the ****ty VRM... the 6970 is already a well solid card by itself along that I stand behind the build quality of.

Have a look at their performance per watt difference:

http://www.guru3d.com/article/geforc...-sli-review/13

http://www.guru3d.com/article/radeon...6970-review/11

Plus, those cards have some of the best looks in a card these days. If that counts. lol. Hardware MLAA too, you can add AMD's own layer of AA on top of a game with little performance loss and high gains when it works. From what I've heard so far, AMD drivers have been getting better with CAT 11.11.

http://www.techpowerup.com/forums/sh...d.php?t=154429

Extra vRAM may help in future, too. You can't go wrong with a reference 6970.
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post #15 of 18
Quote:
Originally Posted by rishflab View Post
i probably will never end up crossfiring a $365 card. the thing with crossfiring down the road will be that i am in the same situation as i am at the moment
--->crossfiring a hd4890 is completely pointless....

gtx 570 seems to have better performance than the 6970 while being a bit cheaper i dunno..
I think you should probably get 2 6870's in CF.

If you're buying from pccasegear these ones look pretty good:

http://www.pccasegear.com/index.php?...ducts_id=15875

Not OCed but for $179 each with a custom cooler (that will let you OC a fair way if wanted) they will spank any 6970 or 570.
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post #16 of 18
Get a 570Gtx for $300 and overclock it to 900/2000. You'll get the same FPS as a 580Gtx, plus you wont have to worry about dual card issues. ATI cards seem to struggle in BF3.

I'm running my 570 @ 900/2000 with every option maxed out. I don't know what my exact FPS is, but it definitely plays smooth.
post #17 of 18
Thread Starter 
Quote:
Originally Posted by Armand Hammer View Post
I think you should probably get 2 6870's in CF.

If you're buying from pccasegear these ones look pretty good:

http://www.pccasegear.com/index.php?...ducts_id=15875

Not OCed but for $179 each with a custom cooler (that will let you OC a fair way if wanted) they will spank any 6970 or 570.
MSY does 6870s a bit cheaper+ i dont have to pay for delivery. pccg has great prices and customer service but they end up being pricey once i factor in delivery.

this thread says 11.10 + cap4 is good but i dont know if he is talking about fps or microstutter
http://www.overclock.net/ati-drivers...mance-bf3.html

catalyst 11.10+cap4 is supposed to have removed microstutter according to ATI. i will wait for a bit and see what the public has to say about this microstutter issue.

the way that AFR works is bound to cause troubles.
Edited by rishflab - 11/1/11 at 6:23pm
    
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post #18 of 18
Even at that res an hd 6970 or gtx 570 would be my target.

I play at 1080 with a 6970, without AA I get 60+fps on Ultra for 80% of singleplayer with lows hitting ~40fps rarely. For multiplayer I play with no AA, no HSBO, no blur, and shadows on high for 60+ fps all the time (looks great). With your res I imagine it would take a 6970/570 to have the game close to maxed in multiplayer and still get 60+.

Anyways, that being said I found my 6970 for 270 after MIB, I'm sure with a bit of patience and searching you could catch a 570 or 6970 in your price range.
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