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Smart time to upgrade to 6970 CFX?

post #1 of 21
Thread Starter 
I have never had a CFX setup before and I think I am ready to upgrade because I really crave having solid 60 fps with max settings in 1920x1080 with 8xAA. Especially looking to maxing out BF 3 in dx11

So the question is, would upgrading from a single 6970 to a CFX be a huge boost in terms of frame rate?

For example: In Crysis 2 in DX11 with HIGH RES TEXTURE - all settings max in 1920x1080...i only get like 25-30 fps average. In BF 3 Beta, in ultra, same thing....low 30 fps average. I would really like to boost this.

I would also have to get a new PSU, and a new mobo that supports CFX (any suggestions? I am looking to stay under $300 for both combined)

Is now a smart time to upgrade? I know AMD is rumored to drop 7000's series in December but with Black Friday coming up, im sure there will be some great deals on 6970's.

What should be my expectations with adding a second 6970, is it a wise move. Would love to read your opinions. I have only dealt with single cards up to this point. Thanks
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post #2 of 21
Yep, CFX is great with the 6000 series, you will see 60fps no problems on 1080p.

If you can score a used 6970 at a good price then its a no brainer, IMO prices will hold steady for the 6000 series because they were so popular. In fact, they increased in price in NZ. Not sure about where your living though.

Edit: Grab a 2500k and any mobo that supports 8x 8x and your good to go, yes you will likely need to upgrade your PSU too, 650w is cutting it fine
    
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post #3 of 21
Thread Starter 
thanks for the reply, I cant afford to upgrade to intel CPU right now. I have to stick with my my phenom II x4 quad 4.0GHz. Is there any possibly that my cpu can be a bottleneck to a CFX setup?

any suggestions for a mobo and psu?
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post #4 of 21
I think your Phenom at 4.0ghz will be OK and shouldn't bottleneck too badly.

Look for a good quality 750w at a minimum, Corsair units are pretty popular as recommendations.

As for motherboard, there's so much choice out there right now for 1155 socket. I'd recommend the ASUS P8Z68-V PRO or GIGABYTE GA-Z68XP-UD4 if you wanted to save some money, I don't have experience with other manufacturers so I cant comment much further than that. But both boards there are solid choices.
    
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post #5 of 21
Heck yes it would, 90% increase on average (that's crazy!!) totally worth it. Have my backing. But I wouldn't know as I bought both of mine at the same time and went from a 460 sli to this, and heck I saw a huge boost!
     
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post #6 of 21
Your cpu will bottleneck.....but you can get away with it!

get a 700W PSU...dont go cheap on the psu please!!!


VERY WORTH IT!!!
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post #7 of 21
Your Phenom II will *definitely* bottleneck! I learned this the hard way with a HD 5970, and 6970 crossfire is even more powerful. You'd probably only see 50-70% of the performance you'd get if you removed that bottleneck.
    
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post #8 of 21
Thread Starter 
this is a SHOCKER to me....how can a quad core cpu at 4.0 GHz be a bottleneck? Very disappointing if this is the case.
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post #9 of 21
Quote:
Originally Posted by Tradio View Post
this is a SHOCKER to me....how can a quad core cpu at 4.0 GHz be a bottleneck? Very disappointing if this is the case.
It is not only reliant on it being a quad, it also matters on how it utilizes the information, more into how much it accopmlishes per clock, how the archtecture works to handle this, and other stuff that I'm only beginning to learn about.

But here's a review to show you a bottleneck:
http://www.hardwarecanucks.com/forum...re-review.html
     
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post #10 of 21
Even if you keep the 970be and @ 4.0, your cf with 2 6970,s is going to be well worth it period!!
    
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