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Single 5970 or GTX 480+GTX 470 for BOINC?

post #1 of 10
Thread Starter 
I'm doing a great overhaul of all my rigs, especially my HTPC, but i'm limited by it's 750w PSU. I have the option to get a really cheap (and working) HD 5970, or a GTX 480 to use along with my GTX 470. All the cards would be OC'd to their limits, and placed under water. Which setup would yield me the most PPD, regardless of the project?
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post #2 of 10
Correct me if I'm wrong, but isn't it impossible to SLI different GPU (480 and 470 here)? Isn't only possible with crossfire?
post #3 of 10
Unless things have changed dramatically don't AMD cards BOINC better then green team?

either way you wouldn't want to be running a highly overclocked 480 and 470 on a 750 watt psu for such long periods of time I wouldn't think.
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post #4 of 10
Thread Starter 
Quote:
Originally Posted by denial_ View Post

Correct me if I'm wrong, but isn't it impossible to SLI different GPU (480 and 470 here)? Isn't only possible with crossfire?

BOINC doesn't matter if you get SLI/Xfire or not, it uses individual GPU's. My current setup is 1 GTX 470 + 2 GTS 450's and they all work good enough.
Quote:
Originally Posted by trulsrohk View Post

Unless things have changed dramatically don't AMD cards BOINC better then green team?

either way you wouldn't want to be running a highly overclocked 480 and 470 on a 750 watt psu for such long periods of time I wouldn't think.

It won't be 24/7, i do plan to change that with a new case+PSU in the future, but for now gotta work with what i got.
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post #5 of 10
5970 should get you 700mil-1.2mil on donate and around 700-850mil on dirt i cant say that much for the 480 tho darkryder should be able to help i think he has one. I have a 5970 reference block im not using lol id sell cheap it will need vrm and memory pads maybe just vrm would have to look at it.
Edited by Bal3Wolf - 2/11/13 at 5:33pm
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post #6 of 10
Quote:
Originally Posted by Starbomba View Post

BOINC doesn't matter if you get SLI/Xfire or not, it uses individual GPU's. My current setup is 1 GTX 470 + 2 GTS 450's and they all work good enough.
It won't be 24/7, i do plan to change that with a new case+PSU in the future, but for now gotta work with what i got.

Either way I imagine the 5970 should perform similarly or better and at a more power efficient clip. Plus you only need one block that way thumb.gif
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post #7 of 10
My GTX 480 running lightly overclocked at 810 MHz is making about 750k PPD running Dirt
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post #8 of 10
I would think between the two Nvidia GPU's you could pull more PPD. Oh wait is the 5970 a dual GPU? If so that would probably be better.
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post #9 of 10
Quote:
Originally Posted by Finrond View Post

I would think between the two Nvidia GPU's you could pull more PPD. Oh wait is the 5970 a dual GPU? If so that would probably be better.

5970 is dual gpu, two 5870 chips on a pcb although they are dowclocked to 5850 settings at stock
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post #10 of 10
Quote:
Originally Posted by trulsrohk View Post

5970 is dual gpu, two 5870 chips on a pcb although they are dowclocked to 5850 settings at stock
they are downclocked to make it under the 300w power requirement for the pcie specs. also they have less vrms than 2 cards.
    
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