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[Official] AMD Radeon HD 7950/7970/7990 Owners Thread - Page 3187

post #31861 of 38668
Quote:
Originally Posted by Lionheart1980 View Post

From what i know, from going single gpu to dual gpus, u will gain about roughly 50% or more gain in some areas / games. From dual gpus to triple gpus, you will gain about 25% roughly maybe less.... and in my honest opinion about going quad gpus is a waste of time and money cuz you will only gain maybe 5 to 10% gain. If i were you, i would go dual only and get the most of em that way. If money is no limit then up to ya biggrin.gif

From what I've seen, it heavily relies on the game; if there's bad or no Crossfire support in a game, the gains can be minimal or even slightly negative. In games that support Crossfire correctly, though, it tends to be ~80-90%+ (100% on occasion) for two GPUs and ~60%+ for three.
Quote:
As for psu, I'm now running a Corshair 850w AX or TX can't remem...but thinking I may have to upgrade..if so (not sure, could run 3 at stock?), which of these would you recommend?

Out of those, I'd recommend the AX1200. If you can get a Seasonic X- or Platinum-series, Rosewill Capstone or Tachyon, or Lepa, those would be good too. I'm not sure what units CM and Silverstone use, so I can't say if those are good.
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SPEAR
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Laptop #3
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post #31862 of 38668
Quote:
Originally Posted by FtW 420 View Post

Because there are places where futuremark valid scores are required, & there are places where futuremark valid doesn't matter. You don't bench for hwbot, but there shouldn't be issues with people posting tess disabled scores in here, it isn't one of the official ranked threads.

Dug up a water cooled tess enabled score from last winter, crack open the windows & have a shot at it.


Yup...looks good btw.
I sold that card so I can't go for a tess enabled run to post here.
Quote:
Originally Posted by Gungnir View Post

From what I've seen, it heavily relies on the game; if there's bad or no Crossfire support in a game, the gains can be minimal or even slightly negative. In games that support Crossfire correctly, though, it tends to be ~80-90%+ (100% on occasion) for two GPUs and ~60%+ for three.
Out of those, I'd recommend the AX1200. If you can get a Seasonic X- or Platinum-series, Rosewill Capstone or Tachyon, or Lepa, those would be good too. I'm not sure what units CM and Silverstone use, so I can't say if those are good.

I'd keep my eyes peeled, sometimes some well known psu reviewers sell great, tested units here or at overclockers.com/forums...(Bobnova, Oklahoma Wolf, Johnny Guru)
Also, some local members sell good and cheap units from time to time. My TX750 was bought here, and never had an issue since I got it two years ago.
post #31863 of 38668
Quote:
Originally Posted by ivanlabrie View Post

Yup...looks good btw.
I sold that card so I can't go for a tess enabled run to post here.
I'd keep my eyes peeled, sometimes some well known psu reviewers sell great, tested units here or at overclockers.com/forums...(Bobnova, Oklahoma Wolf, Johnny Guru)
Also, some local members sell good and cheap units from time to time. My TX750 was bought here, and never had an issue since I got it two years ago.
Quote:
Originally Posted by ivanlabrie View Post

Yup...looks good btw.
I sold that card so I can't go for a tess enabled run to post here.
I'd keep my eyes peeled, sometimes some well known psu reviewers sell great, tested units here or at overclockers.com/forums...(Bobnova, Oklahoma Wolf, Johnny Guru)
Also, some local members sell good and cheap units from time to time. My TX750 was bought here, and never had an issue since I got it two years ago.

You're selling off your AMD cards? I'm guessing for new AMD?
Just seems weird that you would be getting rid of them unless upgrading.

I'll have to sit outside to bench cold weather again this year, have some roommates here now & bet they would start whining if I dropped the temp in the house down to 2° again...
    
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post #31864 of 38668
Quote:
Originally Posted by FtW 420 View Post


You're selling off your AMD cards? I'm guessing for new AMD?
Just seems weird that you would be getting rid of them unless upgrading.

I'll have to sit outside to bench cold weather again this year, have some roommates here now & bet they would start whining if I dropped the temp in the house down to 2° again...

Needed to kill my CC debt asap...I'll upgrade to 290 or 290x as soon as possible though. Or just get dual 7970 or 7950s and a monitor.
post #31865 of 38668
Quote:
Originally Posted by ivanlabrie View Post

Needed to kill my CC debt asap...I'll upgrade to 290 or 290x as soon as possible though. Or just get dual 7970 or 7950s and a monitor.

I am basing my buy soley on one thing.
What ever set up gets me 50% more performance on a single card then ill buy a new 290, if not 7950 sapphire my beastly value card (used 185USD back in June 2013:thumb:)
post #31866 of 38668
Quote:
Originally Posted by ivanlabrie View Post

Needed to kill my CC debt asap...I'll upgrade to 290 or 290x as soon as possible though. Or just get dual 7970 or 7950s and a monitor.
Yes same boat here but i have the monitor and 2x7950s is awesome in virtually everything i play.... although I'd love to read your review on a 290(x) tongue.gif

my 2cents.gif is to get the monitor first though .... its a huge leap
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post #31867 of 38668
Quote:
Originally Posted by ivanlabrie View Post


Needed to kill my CC debt asap...I'll upgrade to 290 or 290x as soon as possible though. Or just get dual 7970 or 7950s and a monitor.


I've been there, learned the hard way I am not good with credit. Nowdays I have a prepaid type card that I have to put money on before i can use it, or just have the cash in my pocket. I can go broke but at least can't dig myself too deep into a hole.
    
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post #31868 of 38668
Quote:
Originally Posted by FtW 420 View Post

I've been there, learned the hard way I am not good with credit. Nowdays I have a prepaid type card that I have to put money on before i can use it, or just have the cash in my pocket. I can go broke but at least can't dig myself too deep into a hole.
Yea I'm usually careful but my stupid transmission blew up a few months back...
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post #31869 of 38668
Quote:
Originally Posted by Lionheart1980 View Post

From what i know, from going single gpu to dual gpus, u will gain about roughly 50% or more gain in some areas / games. From dual gpus to triple gpus, you will gain about 25% roughly maybe less.... and in my honest opinion about going quad gpus is a waste of time and money cuz you will only gain maybe 5 to 10% gain. If i were you, i would go dual only and get the most of em that way. If money is no limit then up to ya biggrin.gif

As for your choice of psu, i would go with Cooler Master Silent Pro Hybrid 1300Watts PSU. (1st one) thumb.gif

Quote:
Originally Posted by Gungnir View Post

From what I've seen, it heavily relies on the game; if there's bad or no Crossfire support in a game, the gains can be minimal or even slightly negative. In games that support Crossfire correctly, though, it tends to be ~80-90%+ (100% on occasion) for two GPUs and ~60%+ for three.
Out of those, I'd recommend the AX1200. If you can get a Seasonic X- or Platinum-series, Rosewill Capstone or Tachyon, or Lepa, those would be good too. I'm not sure what units CM and Silverstone use, so I can't say if those are good.

Cheers guys... When the cards come, I'll try them with the AX850w and if running at stock, ill bench with 2 then 3... try out some diff games & check fps and report back. If the difference is minimal, I'll prob sell one on and keep dual. As for PSU, I dunno... I do like the idea of having the extra bay thingy with cooler master! But also know I can rely on AX psus.
post #31870 of 38668
I love my ref 7970 i run 1175/1600 at 1.175v while gaming ..
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