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  #3301 (permalink)  
Old September 20, 2010, 04:18 PM
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Originally Posted by Sagath View Post
If Steve's numbers are accurate, which I believe they are, the 450s are the best choice on the market bar none. They are the 9600gso of the fermi generation.

I cant see anything else competing with them for ppd/$ unless the 440 or something is over the top.
How is the PPD on non-advmethods WUs? Remember the advmethods WUs are experimental. WUs come and go.

If 15K is the new normal on the 450s...then I would get 450s for sure. The 460s might be a better-bet for 12-15K.
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  #3302 (permalink)  
Old September 20, 2010, 04:20 PM
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Originally Posted by Sagath View Post
My only concern would be if Stanford releases something to utilize more shaders on the higher end cards more effectively. I'm not even clear on how a 192 shader card can outperform a 300+ shader card :|
Pfft, I'm seeing GTS 450's put out numbers that challenge my GTX470 for less than half the price and less than half the power consumption.

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Originally Posted by chriskwarren View Post
I have seen WUs in the past on 2xx cards that really hammered the PPD on low end cards, while the cards with more shaders barely took a hit.

So while I think the 460s are a 'safer' folding card, the 450s are still excellent (obviously) and on par with the 460s many WUs.
Thing is the workload on the new WUs seems to be going back to the CPU instead of offloading to the GPU completely like they were planning to. It also seems like PPD on the new GPU3 WUs is affected by CPU speed. (preliminary speculations of course) I got my fingers crossed for shader based WUs.
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  #3303 (permalink)  
Old September 20, 2010, 05:08 PM
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Originally Posted by lowfat View Post
Still ridiculous PPD/$. That is like 100PPD/$. Not including the cooling of my GTX460's I am only able to get 74PPD/$.
Shame that there isn't all that many advmethod WU's available. I think I've got maybe 10 per client of the 40 of so each of my GTX460s have done this past few days.

EDIT: What are you using to view the PPD in that window?
Partial screen cap from the main page of the HFM webpage generator. That's what I use to remotely monitor all of my internal network clients.





Quote:
Originally Posted by chriskwarren View Post
How is the PPD on non-advmethods WUs? Remember the advmethods WUs are experimental. WUs come and go.

If 15K is the new normal on the 450s...then I would get 450s for sure. The 460s might be a better-bet for 12-15K.
This, and the yet-to-be-seen reaction to having an SMP2 client running in the background might be the fly in the ointment. From the first couple of WUs on the non-advmethods (and these are just initial results) I'm seeing around 9.9K PPD, while I believe a high OC'd 460 sees 12K+.

Something else to keep in mind that this is a fairly heavily OC'd 450 (It's the ASUS TOP w/ the voltage adjustment) so that might make a difference as well.

One thing I found quite strange was the temperature drop on the -advmethod WUs.... I dropped down to 48c from 55c with a 5K PPD increase!!!! ;)


Edit: Pulled another 925 WU, and it's running 14.8K so maybe I got lucky pulling a 15K+ WU right off of the bat.
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Last edited by sswilson; September 20, 2010 at 05:20 PM.
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  #3304 (permalink)  
Old September 20, 2010, 05:27 PM
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with -advmethods, 460's in the mid to high 800mhz range pull 14k+, non-adv nets around 12k you're right.

I really am starting to believe ilya has the beans of it, these advmethods arnt offloading from the CPU to the GPU properly. That would explain both poor SMP numbers I'm seeing, and the temperature drop you're seeing. It would also explain the poor scaling on the 460's in reference to the 450's.
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  #3305 (permalink)  
Old September 20, 2010, 05:34 PM
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I've been doing some reading on the subject, and it looks like the 2X GPU client might be holding your PPD down a bit as well.
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  #3306 (permalink)  
Old September 20, 2010, 05:48 PM
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someone posted before,mightve been ss, something about the lines of 'small footprint' wu's that care about shader/core speed vs number of them. those might be pretty abundant, as stanford gets stuff back done faster,and especially very fast on older hw as well.
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  #3307 (permalink)  
Old September 20, 2010, 05:50 PM
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Wasn't me, but I do remember the WUs that were beating the crap out of my 275 & 280, while my 9600GSOs were either untouched, or possibly even slightly up on PPD.

Going to throw the SMP2 on here shortly.... we'll see how that goes. :)

I'm almost afraid to take the chance of shutting this thing down... damn near had to beat precision over the head to get it to apply the OC. Either it doesn't like the beta driver, or (more likely) it doesn't like Smartdoctor running in the background (needed for the GPU vcore adjustment).
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  #3308 (permalink)  
Old September 20, 2010, 07:03 PM
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oops, sorry.

also, you know the 'if it works, brake it!' saying from Russia owns you right? :D
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  #3309 (permalink)  
Old September 20, 2010, 07:10 PM
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Have to see a few more SMP2 clients, but so far it looks like what would normally be a 14K+ WU is now putting out 11K+. That's one of the "standard" SMP2 WUs, since (like bigadv) these are timed bonus WUs, I suspect the crappy 6701/6702 will take a much larger hit.

If those #s stand, looks to be about a 1K PPD net gain running the -advmethods. I'll drop the -advmethods tomorrow to see if the PPD on the SMP2 is similar to what I was seeing on the GPU2 client.

Either way... this will probably work out fine. The final resting place for the 450 is going to be a dual core i3, and I wasn't sure if I wanted to run SMP2 on that.
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  #3310 (permalink)  
Old September 20, 2010, 07:53 PM
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Thumbs up tag yo

Sorry wrong post! Anyways, excited about folding nonetheless.
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Last edited by Konstantinov; September 20, 2010 at 07:56 PM. Reason: wrong thread
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