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7970 xfire

evohicks

evohicks

evohicks

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Joined
26 Feb 2010
Posts
1,565
Location
Oswestry
Ok now I am nearing the end of my upgrade session for this year I have one final dilema, do I stick with one 7970 or go for a 2nd.
Obviously temps,power, game compatibility and price fall into the cons dept, to the guys with two of these, was it worth it?
 
anthony566 said:
I know you can mix these cards but when going xfire and sli ..... I have always put 2 identical cards together just to remove any issues that might crop up with mixing different manufacture cards together so I'd get a second card to match your current one while you can :) ...
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Yeah this is what I was thinking, I nearly went down the Xfire route a while back when I bought a Vapor x 5770 shortly after they came out but the price of these about 6 months later was a joke and ebay prices were just as bad, so I thought this time its now or never, but now the damn card has gone up 50 notes since I got it a couple of weeks ago ffs
 
YOUR BASKET
1 x Gigabyte ATI Radeon HD 7970 GHz Edition Windforce 3X 3072MB GDDR5 PCI-Express Graphics Card £399.95
Total : £410.75 (includes shipping : £9.00).


I could probably get away with the OC version running both at the OC stock core of 1000Mhz, don't really want to O/C the cards in xfire, more heat not needed ;)
Edit, maybe they raised the price so that when the 5% discount (due to likes on facebook) comes in it looks better :D. Cheapest I have seen so far is £336.35 (Part No: GV-R797TO)
 
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Well as Ocuk couldn't price match close enough I returned it and got a couple of HIS HD 7970 IceQ X²'s, pretty damn cheap offer at the minute, just ran them on BF3 for an hour or so and they got to 50 degrees, 7 less than my single 7970 Ghz and to be honest it's a tad warmer today too.
They ran pretty smoothly at some decent fps, obviously my CPU temp went a few degrees higher but still in the 30's at a low 4.3GHz overclock.
Lets hope it all stays good :)
 
About an hour. Trouble with my work I have to get up at 6am in the week and so at weekends I am always up early, so this morning it was a trip to Ocuk, arrived just after 08.30 :) no idiots on the roads, its a nice drive tbh.
 

http://www.flickr.com/photos/36378108@N06/8715769888/ by http://www.flickr.com/people/36378108@N06/


http://www.flickr.com/photos/36378108@N06/8715790704/http://www.flickr.com/people/36378108@N06/



http://www.flickr.com/photos/36378108@N06/8715776400/ http://www.flickr.com/people/36378108@N06/

Do you think I need to learn some cable management lol!
Just messing with the card fans in the Corsair link software, its really a cool program to be honest, can see each card temp and set fans individually, those temps are on idle but I put the fans on 65% in BF3 for at least one and a half hours with all the eye candy on and the temps were in the very low 40's.
 
sin said:
evohicks what fps you get in bf3?
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It varies to be honest, I have seen it as low as 65 but then it can stay up to around 185, it makes me wonder how much of both cards are being used, when I can get more results I will post back.
PS there is no stuttering at all from the little time I have used them in xfire.
 
Does anyone know how to set the 2nd card fan speed in the Trixx program? I want to set a custom profile like the primary card but its not letting me.
 
Yeah both cards are running fine, I can see both cards in Trixx but when I select the bottom card, I can make a custom fan setting but it doesn't seem to follow it like the 1st one.
Might have to quit the Trixx program and use another maybe.
 
My His cards came at a pretty low 925 core and 1375 memory( for a 7970). I did a bit of searching and found they could reach 7970 Ghz speeds without adjusting any voltage, 1100/1500.
Also I ran Sapphire Trixx and noticed that the voltage can also be adjusted.
Adjusting these clocks will generate more heat, although in my case nothing substantial.
Basically the way most find their cards limit is by pushing the levels up until they get errors/artifcts etc... answering your original question I used the catalyst control panel but usually Sapphire Trixx is my program of choice, I can create custom fan profiles for different applications.
Not tried MSI afterburner.
 
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old gamer said:
just got my second 7970 and quite impressed so far, had to reinstall ccc to get xfire working but no big deal, ive read a lot of people claiming poor scaling with crysis 3 but seems to be working fine for me on 13.5 betas, gpu's never look to drop below 80% use and hver aroun 90 odd most of the time
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What software do you use for fan settings etc?
No matter what I do, if I set a custom fan it works ok for 1 card but not both, seems to leave the other card on just 20% fan. But if I fix the fan speed it will cover both cards ok, taking some working out these but I do like the Crossfire setup, ran my cards at 1160/1660 earlier and they worked fine but to be honest I will run them at stock speeds as they run everything fine and very cool.
 
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