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AMD crossfire questions

S

samcolt

n00b
Joined
Mar 13, 2004
Messages
13
I need to hear some of your guys opinions. I have been running a 7970 reference card since they came out and it seems to perform well. I would like to run another in crossfire, would a 7970 ghz edition work ok in crossfire with a 7970 reference card? Or would I be better of just getting a 7990 or titan. I am planning on getting a 30" 2560x1600 monitor, games should be fun at that resolution:). I do have concerns that my psu could not handle 2 7970's, i have a corsair hx1050 that has ran ok. So the question is should i run crossfire or get a single amd or nvivdia dual gpu card, and do you guys think the psu can handle any of the upgrades. I am running 1 ssd, 1 hdd, 16 gig of ram, 2 dvd, 4 fans, and a powere hungry intel 3960x. Any help would be great.
 
That PSU should be fine. Im running the AX850 and its plenty. I just recently added another 7970 to run at 5760 x 1080 and it was well worth it.

My 2500k seems to be holding them back a little bit. What speed are you running your 3960x?
 
Running dual 7970s would be fine on the set-up you have and the PSU you use.

There are a number of articles on HardOCP you can search to look at power useage, but you'll be fine.

Whether one of the cards is a GHz edition or reference makes little or no difference. All you need to do is clock the cards the same in CCC and they will be fine. Currently the clock limit in CCC is 1125, which is fine and your reference card should be able to run that speed without a concern, especially if it has a dual BIOS switch.

There has been a lot of talk about Crossfire lately. Go over to PCPerspective and read their latest testing methods. Some think that the second card does absolutely nothing to add to the ability of the 7970.
I'm not so sure, but it's pretty good reading.
 
I am running my 3960 at stock speeds and it still eats through everything i through at it. My card does seem to run fine @ 1125 so it seems like adding a 7970 seems to be the most cost effective solution.
 
samcolt said:
I am running my 3960 at stock speeds and it still eats through everything i through at it. My card does seem to run fine @ 1125 so it seems like adding a 7970 seems to be the most cost effective solution.
Click to expand...

Yup.

I have been using crossfire for a long time.
Since AMD did away with those dumb dongle things, it has been pretty good in my opinion.
Sure, some driver editions have been better than others, but that's pretty much the same for NVidia too.
 
magoo said:
Yup.

I have been using crossfire for a long time.
Since AMD did away with those dumb dongle things, it has been pretty good in my opinion.
Sure, some driver editions have been better than others, but that's pretty much the same for NVidia too.
Click to expand...

this.
 
Should work fine. I'm running a pair on less power than you have.

GHz Edition vs not will still work just fine with the 7970s. I actually think my two are clocked differently right now...
 
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