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Folding on a HD 7770 - Page 2

post #11 of 19
Quote:
Originally Posted by Ribozyme View Post

So if I am going to buy a card today, would it be best for me to go nvidia or AMD in terms of PPD/Watt ? I have asked this before in other threads but no one answered tongue.gif

 

The 680, and 7950 both use around the same Watts, IIRC.  The 680 should get slightly better PPD, I think, but I'm not really a GPU folder, so I don't have recent numbers on the core 17 WUs.  I think they both get ~100k PPD, so either way you go, you should be good.

post #12 of 19
Quote:
Originally Posted by cam51037 View Post

For mining it's the 7790, so I'm thinking that.

But currently I think there's a Powercolor 7950 Open box on Newegg for $215, so thats an option too.

Hmm I see. Is it because of the slightly improved CGN architecture that only the 7790 has for now? The 760 that just dropped is looking very attractive too for its price. But I'm afraid that the loss of SMX will hurt its PPD performance.
post #13 of 19
Thread Starter 
Not sure how much each card draws but I have a 7970 oc 1250 120 K ppd and 7770 oc 1100 25 K ppd folding and the system is drawing 385 W at the wall. That's 145 K ppd for 385 W.
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post #14 of 19
Quote:
Originally Posted by martinhal View Post

Not sure how much each card draws but I have a 7970 oc 1250 120 K ppd and 7770 oc 1100 25 K ppd folding and the system is drawing 385 W at the wall. That's 145 K ppd for 385 W.
Damn that's too economical

Btw does the old 6xxx series getting such high ppd too?
I'm thinking of buying a 6870
post #15 of 19
Quote:
Originally Posted by Hitesh12 View Post


Damn that's too economical

Btw does the old 6xxx series getting such high ppd too?
I'm thinking of buying a 6870


I don't think so.  It's mainly the GCN arch that does well on the core17 WUs from the AMD camp.

post #16 of 19
Quote:
Originally Posted by anubis1127 View Post


I don't think so.  It's mainly the GCN arch that does well on the core17 WUs from the AMD camp.
Oh crap. Guess I'll go with 560ti then
post #17 of 19

They still work, but they just don't do as well.  I would guess a 6870 is probably in the same neighborhood PPD wise as the 560ti.  I've got a 560ti 448 core that does ~33k PPD on the core 17 8900 project.

post #18 of 19
Quote:
Originally Posted by anubis1127 View Post

They still work, but they just don't do as well.  I would guess a 6870 is probably in the same neighborhood PPD wise as the 560ti.  I've got a 560ti 448 core that does ~33k PPD on the core 17 8900 project.
http://linustechtips.com/main/topic/13837-updated-core-17-back-in-beta/?p=150850

http://www.overclock.net/t/1367557/core-17-beta-wu/320#post_19546887

http://www.overclockers.com/forums/showpost.php?p=7450208&postcount=19

I don't think 6870 would be able to cross even 15k
post #19 of 19
That's probably true, my stock 6970 was just breaking 17k on P8900.
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