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 Post subject: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Wed Sep 11, 2013 5:28 am 
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Just put in my shiny new toy last night, ran a few benchmarks, and then left it alone to fold. Getting ~70k PPD at stock clocks. GPU-z reports that it seems to alternate betweeen 850MHz and the 925MHz boost state. Haven't tried to overclock it yet, but will update back whenever I do. I don't think I can keep this up 24/7 for the long haul, but I sure wish I could!!

Project 8900. TPF: 5 min 11 seconds, Estimated PPD: 71010.88

It's now on its second WU ever, the first was turned in for ~25k points, and took a little over 8 hours to complete. This one looks to be on track for about the same result. Guess that settles it, AMD can fold, finally! :D


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Thu Sep 12, 2013 12:28 pm 
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Awesome. I have a 7950 Boost as well, the Powercolor one, and it does fold quite well. I was initially getting about the same PPD as you off of it but temps were about 72C. The stock cooler is an utter piece of trash - loud fan, no memory heatsinks, small GPU heatsink, etc. I upgraded mine to the Gelid Icy Vision 2 and that thing not only looks awesome but is a beast and quite affordable.

I am currently in the process of gradually overclocking both GPU and memory again. I got up to 1010/1420 before Folding@home would start having GPU errors and mess up the WU. It was weird because it would game just fine and even do benchmarks without problems. Temps were at about 60 C. I guess Folding needs a lot of precision and even a few errors from OC will ruin your WU. Just keep that in mind.

Currently, I am at an estimated PPD of 81k with GPU 955/ mem 1310 and 20% power increase. Temps are 56 deg C.

Best of luck. I will let you know how high mine goes without errors.


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Mon Sep 16, 2013 5:07 am 
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Thank you for the info! The cooler on mine (Sapphire Dual X, not the nicer Vapor X) is probably not the fanciest (feels rather flimsy compared to some other cards I've had) but it does seem to be keeping my temps in check. My next step will be overclocking, but first I want to stabilize the core clock under load, seems like the boost state can be a little fickle. Ran furmark on it and it actually sometimes dipped down to 500MHz when I was watching it in GPU-z :-/ Games run great though!

I know what you mean about FAH being sensitive to errors. My 650 Ti which I use for folding will game for hours with no artifacts or anything with a high memory OC, and will even run FAH core 15 (the older GPU one) with that same OC, but the new core 17 dies if I leave the memory OC too high. Thankfully since I mostly use that card for folding and not gaming now that I got my 7950, I can keep the core OC on it and leave the memory stock, which doesn't really seem to hurt PPD too much since folding is thankfully not particularly bandwidth sensitive, at least not yet!


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Wed Sep 18, 2013 10:20 am 
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Just a quick update since I finally had a chance to try out a mild overclock:

With 7950@1GHz core (dualbios switched to the non-boost bios because the other one fluctuates too much):

Project 8900 TPF 4:33, Estimated PPD: 86507.63

:D

Still wish I could afford to run it 24/7, but it was nice while it lasted!

Edit: Temps only hit a max of 62C but my basement office is rather chilly so I have pretty lucky ambient air also. I also haven't done any memory OCing on the GPU at this point


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Tue Oct 08, 2013 8:15 am 
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Hey guys. I have a 7970 and get around 105-120k PPD. I have an overclock of around 1130 MHz. Just wanted to put that out there for some numbers.


Last edited by Gero1369 on Mon Oct 21, 2013 6:14 am, edited 1 time in total.

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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Fri Oct 11, 2013 7:30 am 
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*drools* :) Thanks for sharing!


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Sun Oct 20, 2013 7:39 pm 
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What are you doing special with you 7970? I've got a 7970 GHz edition from XFX, getting 5K ppd... What gives? Stock cooler, stock clock.


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Mon Oct 21, 2013 6:18 am 
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gotta turn on the 'client-type' to 'advanced'.

instructions:
http://www.overclock.net/t/979691/info- ... t_12955285

Enjoy the boost Chandler!


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Sat Oct 26, 2013 8:38 am 
FoldingMonster
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Thanks Gero,

I hadn't caught onto the need to specify "Advanced"

I'm back to Core 17's now.

:mrgreen: :mrgreen: :mrgreen: :mrgreen: :mrgreen:


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Mon Oct 28, 2013 11:51 am 
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Well, I put in the advanced flag. We will see how it goes. I also read somewhere that using the big WU flag doesn't net Core 17. Is that true?


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 Post subject: Re: Core 17 Radeon HD 7950 (w/ boost) PPD numbers
PostPosted: Tue Oct 29, 2013 5:45 am 
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I don't think that the 'big WU' flag does pretty much nothing these days (ala 'small', 'normal', and 'big'). AFIK it's pretty much obsolete and ignored.


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