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7950 Crossfire vs 680 SLI at 5760*1080 (Eyefinity/Surround)

Mine are running 1250/1700 now it's very noisy but seems to run ok and the temps are well within limits.

I'm getting 3950 on Heaven which is still slightly lower than your result Rusty. Tbh I doubt I will get much more out of them as any increase over 1250 on the cores heaven artifacts quite badly.
 
MOOGLEYS said:
I'm getting 3950 on Heaven which is still slightly lower than your result Rusty. Tbh I doubt I will get much more out of them as any increase over 1250 on the cores heaven artifacts quite badly.
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Try the memory a little more - Heaven loves a memory overclock. To get 4100 (:eek:) I ran at 1150/1750 on both I think. Honestly I can't remember I've tried so many different clocks :D.
 
chipachap said:
They all have a dual-BIOS so I presume you can flash it to one of them. The first BIOS is locked so the 2nd one is for messing around.
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You can't manually modify the bios and put in custom voltage/clocks like you used to be able to do with RBE chip, however you can flash it as much as you like with different official bios files(although a lot of them won't work as they are for custom boards).

Rusty0611 said:
Exactly Tommy - it's ridiculous
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It certainly is, between your results and all the other ones in the BM thread, I won't believe the stuff you read in reviews anymore.

I used to link [H], but unbeknown to me at the time, what I thought was honest information, looking back in hindsight it was probably skewed by them in favour of AMD as they were good buddies.

Now that Galaxy are feeding them money, they slate AMD at nearly every other turn-considering the performance is very close in the first place.

Gareth said some time ago about relying on user reviews in the forum to make his own mind up as they are not being skewed, he was correct all along.
 
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Tonester0011 said:
Very impressive.


Mine are 1225/1725 though, is that average or decent for CF?
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above average.
1200mhz+ is a good result.

at higher resolutions the difference is obvious, we will see 1920x1080 becoming meaningless one day for benchmarks as you as a user wont notice a difference anymore. even now a few who done upgrades are hard pressed to take note of a difference at that resolution.
 
Nice results rusty.

I don't think anyone really thought you were a Nvidia fanboy, not that i saw anyway.

A little bit argumentative? Maybe. :p

So is the plan to just keep 1x7950 and go back to single screen?
 
There were plenty Matt :)

What normally happens when you out argue someone while defending a view point which is favourable to nVidia you are labelled a fanboy. :D

Yes keeping the good 7950 and single screen.

I've sold both 680's and interest in the two monitors as well.
 
Rusty0611 said:
There were plenty Matt :)

What normally happens when you out argue someone while defending a view point which is favourable to nVidia you are labelled a fanboy. :D

Yes keeping the good 7950 and single screen.

I've sold both 680's and interest in the two monitors as well.
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Nice, we'll be able to compare results in the months to come.
 
flopper said:
above average.
1200mhz+ is a good result.

at higher resolutions the difference is obvious, we will see 1920x1080 becoming meaningless one day for benchmarks as you as a user wont notice a difference anymore. even now a few who done upgrades are hard pressed to take note of a difference at that resolution.
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It's deffinately noticeable at 120hz 1080p. Just tried a single card with bf3 and its horrid compared to the two.
 
tommybhoy said:
It certainly is, between your results and all the other ones in the BM thread, I won't believe the stuff you read in reviews anymore.

I used to link [H], but unbeknown to me at the time, what I thought was honest information, looking back in hindsight it was probably skewed by them in favour of AMD as they were good buddies.


Gareth said some time ago about relying on user reviews in the forum to make his own mind up as they are not being skewed, he was correct all along.
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Unless your a power user with getting the latest, as what I do is buy price/performance, as I waited for the 7970 to drop in price and got it at half price point vs release I now can run my setup at 5040x1050 120hz the way I want with a single card.
The difference for me was a higher resolution at same fps vs my old set up a 6870/6850 crossfire but with a better compability. I coudlnt play at 5040x1050 all the time due to it wasnt enough horse power.

I wouldnt have bought a 680 or a 670 due to the bandwidth starts to affect those cards there 2560 resolution and up. Then price performance just dont make sense as the sum I payed for the 7970 any other card was more expensive for less performance.

Many buy by brand and think its wise due to we tend to defend what we value even when facts dont add up.

However, the 12.11 drivers fixed a lot of issues with games and the next series cards the drivers will be working better early. Having some motherboards from specific manufacturer not working properly dont help either :) Crossfire and especially trifire still dont match single card performance yet. Even though BF3 show what is possible with crossfire if all things works.
 
chipachap said:
He's not big on BF3 IIRC so keeping the card for that game in particular doesn't really make sense. I play a lot of it so if it was me I'd hold onto it!
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Mmm? I play a lot of BF3. I'm getting in real terms roughly equivalent performance to "the beast" in BF3 which is enough FPS.

I'd rather drop to 2*MSAA tbh than have a second 7950.

Two cards are terribly under utilised at 1080p as well. If they were both going at 99% most the time it would be a little easier to justify but they don't.

I wouldn't class it as a terrible experience with one card at all. Averages of 80-90 are more than enough IMO. Granted it's not optimum but £250 for the difference between that and whatever two cards give when most of the time you won't be able to tell the difference anyway is not worth it.
 
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I run 2 680's 4gb models as I sold one if my 7979 but I'm going to get a 2nd one this weekend and compare, I run at 7680x1400 and only play BF3. This was the reason for 680's as I had nothing but problems with Amd when the 7970 first come out. Fingers crossed this latest driver fixed NY mouse to screen lag and screen tearing.. Good work Op :)
 
Rusty0611 said:
Mmm? I play a lot of BF3. I'm getting in real terms roughly equivalent performance to "the beast" in BF3 which is enough FPS.

I'd rather drop to 2*MSAA tbh than have a second 7950.

Two cards are terribly under utilised at 1080p as well. If they were both going at 99% most the time it would be a little easier to justify but they don't.

I wouldn't class it as a terrible experience with one card at all. Averages of 80-90 are more than enough IMO. Granted it's not optimum but £250 for the difference between that and whatever two cards give when most of the time you won't be able to tell the difference anyway is not worth it.
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Sorry. I could have sworn in one of the many arguments that unfolded here ages ago you said you only play a small bit of BF3 as you prefer something else (can't think of it) but nvm, my bad!

In response to the other part of your post you're dead right, it's why I'm selling one of my cards also. SP and Co-op and >16 players online = great scaling.

Above 16 players and it's crap tbh. So I can just run a huge OC on my remaining card and turn off motion blur and possibly down to 2xMSAA to get >100 fps average.

Micorstutter is not actually a problem if you disable triple buffering and the ol renderaheadlimit 1 trick, but still the poor utilisation is what kills me.
 
@ Rusty, Your GPU temps.

If one is running a bit to warm it could be because your picking up the hot air from the other in xFire.

I think you had closed pull push GTX 680's? they blow the hot air out the back of the case, if you want the same thing with AMD you need to get one with the reference cooler or the IceQ one. others do dump hot air into the case, one will suck in the hot air from the other if they are close together.

Failing that turn your intake and exhaust fans up to create more airflow.
 
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