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Question About A HD5970?

post #1 of 15
Thread Starter 
Just wanting to make sure.
If a game that only support 1 gpu.
Will the game use 1 or 2 gpu that is on the card?

I thinking of selling my 5970, because I only play 1 game that I know for a fact that supports 2 gpus.
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post #2 of 15
Sounds like you would be better off selling it and getting a 6950.
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post #3 of 15
Thread Starter 
Quote:
Originally Posted by driftingforlife View Post
Sounds like you would be better off selling it and getting a 6950.
The thing is that WOW, L4D and L4D2 only uses 1 gpu, but both gpus has a load on it when I play those games.
Edited by dixson01974 - 6/14/11 at 5:15am
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post #4 of 15
If the game only supports 1 GPU then it will usually only use the one.

Then again, updated Application Profiles from ATI can enable support for both GPUs in some games that only natively support 1.

I think...
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post #5 of 15
Thread Starter 
Quote:
Originally Posted by tedman View Post
If the game only supports 1 GPU then it will usually only use the one.

Then again, updated Application Profiles from ATI can enable support for both GPUs in some games that only natively support 1.

I think...
If that is true then that is what it is doing. I install ATI Application Profiles too.
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post #6 of 15
Im quite sure you are totally wrong. And before long the power of the 5970 is going to be necessary, your not seriously going to be playing wow and lfd2 for the next 5 years are you when there are some amazing looking next gen titles round the corner, not to mention the warhammer 40K mmo.? I personally think wow is gay, but I will certainly be looking forward to developing a spacemarine into a pirmark rivaling nutcase

The way crossfire and sli work in most cases is through alternate frame rendering, so it doesnt matter what the game supports - because it not the game that supports the hardware, its the hardware that supports the game - through drivers.

The twin gpus simply render alternate frames to half the work load so that you end up with close to double the performance.

Getting rid of your 5970 would be a complete waste of money considering it is better than or equal to a 580 in power.

Ok so we have to wait a little while (few weeks usually) for the companies to get the alternate frame rendering adjusted for the new games throught driver updates, but hey, i dont know about you but I payed £320 for my 460 hawks which are more powerfull and net me more frames that a £450 gtx 580
    
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post #7 of 15
Thread Starter 
Quote:
Originally Posted by Juliancahillane View Post
Im quite sure you are totally wrong. And before long the power of the 5970 is going to be necessary, your not seriously going to be playing wow and lfd2 for the next 5 years are you when there are some amazing looking next gen titles round the corner, not to mention the warhammer 40K mmo.? I personally think wow is gay, but I will certainly be looking forward to developing a spacemarine into a pirmark rivaling nutcase

The way crossfire and sli work in most cases is through alternate frame rendering, so it doesnt matter what the game supports - because it not the game that supports the hardware, its the hardware that supports the game - through drivers.

The twin gpus simply render alternate frames to half the work load so that you end up with close to double the performance.

Getting rid of your 5970 would be a complete waste of money considering it is better than or equal to a 580 in power.

Ok so we have to wait a little while (few weeks usually) for the companies to get the alternate frame rendering adjusted for the new games throught driver updates, but hey, i dont know about you but I payed £320 for my 460 hawks which are more powerfull and net me more frames that a £450 gtx 580
How can I be wrong if I see loads on both gpus, because of a game doesn't support 2 gpu then it should only use 1 gpu.
5970 was free, so it wasn't a waste of money and it is better the 580. I play another games too and I can use the power of the 5970 without a problem.

EDIT
I'm basically checking why both gpus has a load on it when some of my games only support 1 gpu.

EDIT
I had 5870 CF and WOW, L4D and L4D2 only use 1 of my gpus not both. In AVP it will use both gpus, which that is normal.
Edited by dixson01974 - 6/14/11 at 5:43am
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post #8 of 15
THERE IS LOAD ON BOTH GPUS BECAUSE THEY ARE BOTH BEING USED YOU HEADCASE lol, i.e. crossfire / sli IS working.

Sometimes when the gpus are not being used properly and drivers have not yet been wrote to optimise both gpus, you will still see both being under at load, however performace will not be as high as it should as they are not using alternate frame rendering properly.

If both gpus are under load i dont know what your complaining about, i mean, if both where under load it would indicate that both gpus are being used lol, not rising the question of BUT HOW SINCE THE GAME ONLY SUPPORTS ONE GPU!?

your understanding of how crossfire / sli works is flawed. As I have explained the game is not wrote to use different threads for graphics rendering (i.e two cards being two threads), that is not how sli/crossifre works - it works through ALTERNATE FRAME RENDERING meaning one card renders every even frame number and the other renders every odd frame.

edit: just saw your edit, theres no way only one gpu is being utilised if you have crossfire enabled. reinstall your drivers as thats strange, and not how crossfire should work.
Edited by Juliancahillane - 6/14/11 at 5:53am
    
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post #9 of 15
Thread Starter 
If it was drivers have not yet been wrote to optimise both gpus. Why do I have problems play Elder Scroll 4 Oblivion and Fallout3 with 5870 CF and I had to disable CF to play them. Both games doesn't support CF or multi gpus.
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post #10 of 15
I'll give you $50 for that ailing 5970.
I'll give you a 5770 for your troubles.
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