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CF 6970 or SLI 570? - Page 2

post #11 of 53
Thread Starter 
thanks for all the replies guys! i was really leaning towards the 570s, now im starting to think twice.

i found this review, it shows that SLI 570s pull ahead of CF 6970 a lot of times...

what do you think?


http://www.anandtech.com/bench/Product/298?vs=307
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post #12 of 53
Most games @1080p or even 1200p with not need more than 1.28gb of vram. But BF3 for example needs more than that @1080p. Alot of poeple change out 570 sli for the vram problem.

I have a 570 and think it's an awseome card, but the vram is just too little for two 570s in sli ( gpu muscle/vram ratio )
    
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post #13 of 53
Only 4xAA in most tests. If that was cranked up, we would see a bigger difference. The higher AA the more vRAM needed. Plus, some of the games tested are "nVidia favoured."

I would either wait for Kepler GPUs and see the price of the HD 7970 go down and/or choose between the GTX 670/770 or GTX 680/780. The HD 5870 that you have will last you long enough until Kepler.
I don't want to sound like an intel fanboy here, but if you plan on CF then get an i5 2500k with the ASRock Extreme3 Gen3 (Supports CF/SLi). The x4 isn't the best scaler for SLI/CF.
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post #14 of 53
Neither OC well enough for my tastes! A single 7970 with an aftermarket cooler would be my first choice.

If you're stuck with your choices get the one with the aftermarket cooler!

If you don't need some of the nVidia stuff like Cuda and you plan on playing at something higher than 1080p or if you plan to max out your games the 6970 crosfirex is the ONLY option.
    
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post #15 of 53
I switched from 2x 6970s in CFX to 2x 580s in SLI (I know, not 570s) simply for better AF and fewer driver issues (mainly CFX not working for the first 2-6 weeks a new game is released). I'd say, given >=2GB RAM per card they're about even with the 570 having slightly better AF and the ability to force RGSSAA in any game. That said, if you have the option I'd recommend a single 7970 over either set up.
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post #16 of 53
Quote:
Originally Posted by Leeeeeeeeee View Post

cf6970 due to the 2gb of vram
i believe 570 and the 6970 are pretty close in performance, but the 6970 gives you the upper hand with the greater amount of vram. most games dont need over 1gb yet, but battlefield 3 does at the highest settings
Sent from my MB860 using Tapatalk

This. 6970's will last you a lot longer than the 570's.
post #17 of 53
Thread Starter 
i sold my sig rig. in the specs i listed in the OP my graphics card in the rig is a 9800GT...
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post #18 of 53
Seeing as how BF3 @ 1080p was using about 1600 MB vram on my old 6970's I would pretty much rule out the 570's.
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post #19 of 53
Thread Starter 
lookin like im leaning more towards the 6970s.... i will be overclocking the snot out either setup...
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post #20 of 53
Quote:
Originally Posted by Sean W. View Post

lookin like im leaning more towards the 6970s.... i will be overclocking the snot out either setup...

In that case go with the 6970's, they are tanks. They 570's blow up too easily.
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