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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 576

post #5751 of 38701
I just setup Eyefinity with 3 23" 1080p screens and 7970 crossfire, I can only run battlefield 3 at around 45 fps with everything maxed out. Is that normal? I feel a little underwhelmed for having such expensive cards. I'm using the 12.2 pre-certified drivers.
post #5752 of 38701
At what level do you have your anti-aliasing? That's notorious for negatively impacting performance. Also, what's your processor?
 
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post #5753 of 38701
Has anyone else had an issue with Beta 14 of AB causing an increase in idle voltage if any voltage changes are made to a profile? I can make any alterations I want aside from core voltage without any issues, but as soon as I touch that my idle voltage jumps from .806 to .949 and stays there. I've tried assigning a stock settings profile for 2D applications, but I still get the same result. I don't encounter this problem while using Trixx, but I prefer AB for the ability to run a Vcore below 1170 and having the power tune function available without having to use CCC. This is on a Sapphire 7970 running the RC11 drivers, btw.
post #5754 of 38701
Well, I'm running RC11, and AB Beta 14, and I just paused boinc and my volts dropped to 300 (mv). But I think there was even someone a few pages ago who was having issues with high idles. I don't know if he got an answer from anyone. All I will say is that I DID once have an issue with AB not allowing me to OC at all, and while I'm not saying it's an identical issue, the solution was wiping both the driver and AB and installing in a different order. I'm not saying, "do this, it will work". I'm saying that the solution, because of how finicky these programs apparently are, is liable to be something annoyingly specific. I would probably suggest a full wipe as an option, but I don't know what else you would need.

Did this just start for you? Has it been going on the entire time?
 
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post #5755 of 38701
Quote:
Originally Posted by pfunkmort View Post

At what level do you have your anti-aliasing? That's notorious for negatively impacting performance. Also, what's your processor?

Anti-aliasing is on 4x msaa, my processor is an i5-2500k.
post #5756 of 38701
Quote:
Originally Posted by Twistacles View Post

I use 1.25 for 1225/1700
or 1.37 for 1250/1700 but at that speed it gets artifacts at some points unless you ramp the fan way up and its too loud

Hey, what do you use to set voltage? Afterburner doesn't let me pass 1.3V. I'm on a 7950 though.
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post #5757 of 38701
KONY 2012 ! thumb.gif
post #5758 of 38701
I don't know. I don't have xfire, but I've read about 50 posts ranting about how much AA is screwing up their performance in BF3 with a 79xx card. For what it's worth, it was supposedly fixed a couple weeks ago in a driver update, but before that, presumably the answer was to go to FXAA or turn it off. I think it's an issue in a lot of games with the 79xx. The best explanation I got was that it has something to do with CCC not properly dealing with it as the CCC option for "let the game decide" or whatever is poorly optimized - and yet that's the only option that's even remotely functional.

[edit] - mastermind, I'm pretty sure that's a typo and he means 1.27. I'm pretty sure these cards have a voltage cap of 1.3.
 
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post #5759 of 38701
Quote:
Originally Posted by pfunkmort View Post

I don't know. I don't have xfire, but I've read about 50 posts ranting about how much AA is screwing up their performance in BF3 with a 79xx card. For what it's worth, it was supposedly fixed a couple weeks ago in a driver update, but before that, presumably the answer was to go to FXAA or turn it off. I think it's an issue in a lot of games with the 79xx. The best explanation I got was that it has something to do with CCC not properly dealing with it as the CCC option for "let the game decide" or whatever is poorly optimized - and yet that's the only option that's even remotely functional.

That seems to be the problem, I just turned AA completely off and the game jumped to around 90fps. I hope newer drivers will fix this issue. Thanks thumb.gif
post #5760 of 38701
If you're really disliking the no AA, try FXAA (which is post aa in the options) at 4x. I think you should still be well over 60 with that. Some people say it makes the game too blurry, but it's up to you what you like.
 
Thanks Geritol!
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