68 replies to this topic

[poser]

Sentinel, would you substitute Nvidia cards with CPU's?

When I asked what would have the best PPD/W with the big WU's I was told:

The only NVIDIA cards which doesn't lose too much is the GTX 2xx series with 192-240 shaders. the more shaders = the merrier.

As for bang for the buck, we need to redo the calculations with those new proteins but I still think the 8800GS/9600GSO is a good value even if they can do only 2500-3000 ppd with the largest WU. With the 973 atoms ones, it float between 3500-4000 ppd compared to 4500-5000 with the smaller ones.

So it might be that the change wasn't big enough to change the relative value of the cards.

[Krell]

Sentinel, would you substitute Nvidia cards with CPU's?

When I asked what would have the best PPD/W with the big WU's I was told:

The only NVIDIA cards which doesn't lose too much is the GTX 2xx series with 192-240 shaders. the more shaders = the merrier.

As for bang for the buck, we need to redo the calculations with those new proteins but I still think the 8800GS/9600GSO is a good value even if they can do only 2500-3000 ppd with the largest WU. With the 973 atoms ones, it float between 3500-4000 ppd compared to 4500-5000 with the smaller ones.

So it might be that the change wasn't big enough to change the relative value of the cards.

I run 3 9600gso overclocked gpu and here is how they perform on various wu I have seen
in the last week:

WU PPD Watts Temp© Atoms
5749 2943 230 83 1392
5756 2963 235 84 1392
5751 2983 233 83 1392
5757 3903 227 84 973
5506 5120 218 80 576
5014 5184 210 80 576
5754 2983 232 83 1392
5753 3003 233 84 1392
5758 3813 226 81 973
5016 5135 219 80 576
5761 3813 229 82 973
5760 3903 223 83 973
5752 2943 234 83 1392
5763 3903 226 83 973

PPD were measured with FAHmon using "all frames".

Watts are measured at wall socket with Kill-A-Watt, and when FAH
is not running, it shows 168 Watts.

So it looks like the new wu with 1392 atoms
drop my 9600gso from 5100 to 3000 ppd, and
the 973 atom wu drop my cards from 5100
to 3900 ppd.

When all of the wu were 576 atoms, I was getting ~13,500 ppd,
but with the wu mix today I get ~10,500 ppd with my three 9600gso gpu.
These measurements are from the Overclocking FAH web page.

If the 9600gso ever sell for $50 again, they are probably still the most
cost effective ppd/$, but cards with more shaders may be more
cost effective in the future as prices go down. Who knows, ATI cards
may even take the lead? We need updated statistics on prices and ppd.

[maestro949]

Nice Post Krell.

I picked up a Kill-A-Watt meter and hope to crunch some numbers, do some overclocking and tuning this weekend. The meter has rig 5 plugged into it and is showing 367 watts.


I've added some more firepower to the mix. Up to 15 GPUs. Pic of the man cave w/rigs 2-5 is attached.

Rig 1 :

9800 GX2 (2 GPUs)
9800 GX2 (2 GPUs)

Rig 2 :

9500 GT
9500 GT

Rig 3 :

GTX 260
GTX 260

Rig 4 :

9600 GSO
9600 GSO
9600 GSO
9600 GSO

Rig 5 :

8800 GT
8800 GT
8800 GT
(Room for 1 more!)

Attached Thumbnails

• 

[Krell]

Sentinel, would you substitute Nvidia cards with CPU's?

When I asked what would have the best PPD/W with the big WU's I was told:

The only NVIDIA cards which doesn't lose too much is the GTX 2xx series with 192-240 shaders. the more shaders = the merrier.

As for bang for the buck, we need to redo the calculations with those new proteins but I still think the 8800GS/9600GSO is a good value even if they can do only 2500-3000 ppd with the largest WU. With the 973 atoms ones, it float between 3500-4000 ppd compared to 4500-5000 with the smaller ones.

So it might be that the change wasn't big enough to change the relative value of the cards.

I run 3 9600gso overclocked gpu and here is how they perform on various wu I have seen
in the last week:

WU PPD Watts Temp© Atoms
5749 2943 230 83 1392
5756 2963 235 84 1392
5751 2983 233 83 1392
5757 3903 227 84 973
5506 5120 218 80 576
5014 5184 210 80 576
5754 2983 232 83 1392
5753 3003 233 84 1392
5758 3813 226 81 973
5016 5135 219 80 576
5761 3813 229 82 973
5760 3903 223 83 973
5752 2943 234 83 1392
5763 3903 226 83 973

PPD were measured with FAHmon using "all frames".

Watts are measured at wall socket with Kill-A-Watt, and when FAH
is not running, it shows 168 Watts.

So it looks like the new wu with 1392 atoms
drop my 9600gso from 5100 to 3000 ppd, and
the 973 atom wu drop my cards from 5100
to 3900 ppd.

When all of the wu were 576 atoms, I was getting ~13,500 ppd,
but with the wu mix today I get ~10,500 ppd with my three 9600gso gpu.
These measurements are from the Overclocking FAH web page.

If the 9600gso ever sell for $50 again, they are probably still the most
cost effective ppd/$, but cards with more shaders may be more
cost effective in the future as prices go down. Who knows, ATI cards
may even take the lead? We need updated statistics on prices and ppd.

Note: the data above is for one cpu/gpu. I am running 3 separate systems.

[naapi]

THIS THREAD IS CLEARLY BECOMING OBSOLETE !

Shall we start a new one "To get to rank 50"?

We have just 3 days to reach rank 100. If it is not yet time to uncork a bottle of a fine champagne, it sure is time to buy one!

Maciek

[brokenportal]

Can some body plan some kind of clever celebration in the forums or something somehow for when we get there? maybe link to a page with fire works exploding and the team name with rank 100 in the middle or something kind of dumb bur representational and fun. It really is a big deal you know, if we had a brick an mortar location we all met at like this we would surely be throwing a big party with food and guests and stuff, maybe even ask the local paper or a local news blog to cover it or something.

[Live Forever]

T-minus 2.3 days and counting...



http://folding.extre...ary.php?t=32461

[brokenportal]

What exactly does getting to rank 100 mean? We will then be on a more visible and more viewed first page of the teams, right? Is there anything else that could be said about its value? I was going to post a count down to rank 100 topic but I dont know all the benefits it entails. Could somebody post a "Top 100 countdown watch" topic or something like that?

[kismet]

THIS THREAD IS CLEARLY BECOMING OBSOLETE !

Shall we start a new one "To get to rank 50"?

I like the idea, I like it a lot.

brokenportal, to me the value is being one of the top contributers to the biggest distributed computing project on earth, which beats any major supercomputer in computational power. Thus we are significantly contributing to research as a group, a community. This group effort also shows that life extensionists finally start to work together to achieve their goals and get their message across.
Additionally we have one of the most active teams (users total/active users).
Our average PPD put us at place 43, so there's a lot of potential.

Edited by kismet, 16 December 2008 - 02:04 AM.