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World Community Grid Forums
Category: Support
Forum: GPU Support Forum
Thread: GPU pimping! |
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Thread Status: Active Total posts in this thread: 5
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges: 
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there comes a day in people's lives, that u have to pimp up your car, house or computer...so,here is my question to you guys...I do computing with a server board with quad-core Xeon proc: http://www.supermicro.com/products/motherboard/Xeon3000/3010/PDSM4_.cfm
----------------------------------------[img]http://www.supermicro.com/a_images/produ...010/PDSM4__spec.jpg[/img] Now, I also want to implement a decent, the fastest awailable GPU power for that board...as u can see, there are slots: - 1 (x8) PCI-e slot - 1 (x4) PCI-e slot There are two things that I can build with that: 1. use dual cards with SLI or CROSS-FIRE...an to do that I have to use 2x identical GPU based on slower 1 (x4) PCI-e slot... 2. use single card on 1 (x8) PCI-e slot, but much faster Also, please suggest the fastest GPU cards for the slots. Which one do you suggest is faster way of crunching & (maybe, if I get some time) video gaming? Thanks! ;) |
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RaymondFO
Veteran Cruncher USA Joined: Nov 30, 2004 Post Count: 561 Status: Offline Project Badges: 
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Currently the WCG does not have any GPU project and using the GPU for crunching is dependent upon which project you want to crunch. GPUGRID.net only utilizes NVIDIA cards and Milkyway@home performs better on AMD cards with double precision cards (when comparing comparable AMD and NVIDIA video cards). Unfortunately there is no "one card fits all" when GPU crunching is involved.
When using SLI or CROSS-Fire you will need the same video card, however this set-up may not be desirable for GPU crunching unlike using the cards for video gaming. I will let others render their opinion on that subject as certain video games tend to perform better on AMD and others on NVIDIA. As for picture quality, beauty is in the eye of the beholder. |
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Coleslaw
Veteran Cruncher USA Joined: Mar 29, 2007 Post Count: 1343 Status: Offline Project Badges: 
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SLI/Crossfire does no good in BOINC, so if this is your desire, it is for things other than BOINC.
----------------------------------------You also need to pick a project you want to support and base the purchase on that. Not all GPU projects treat the GPU's equally. It would be best to post in their forums because they would have better knowledge on their apps. Some projects already have lists for best performers. Then you will want to let people know what power supply you have because they would need to know what connectors you have available for supplying power. Some converters don't always detect right, so I don't recommend using them. If you don't have a power supply with the right connectors, I would stick to cards that don't need power outside what is provided by the slot or you would need to look at other expenses as well. Last, you didn't say how you planned attaching the cards. Are you planning on using riser cables (I'm guessing so) and are they the ribbon kind or the USB kind? Are your cables the powered ones or non-powered. This makes a difference on suggestion of cards as well. Now, you could technically be modifying the slot on the board, but that is risky and not recommended. I have done it, but wouldn't risk it on any board of value. Edit: Last, Last, since this is a rather old board, I don't know if it has PCIe 1.0 or even better 2.0 slots. So, obviously the top of the line cards are bottle necking in potentially two categories. 1. speed from version of PCIe 2. the number of data lanes since it is only 4x and 8x. I'm betting a 750 Ti is probably going to be the smartest purchase for this old system factoring in power draw, performance, heat, etc...     [Edit 3 times, last edit by Coleslaw at Jun 2, 2014 3:54:10 PM] |
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KLiK
Master Cruncher Croatia Joined: Nov 13, 2006 Post Count: 3108 Status: Offline Project Badges:
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Hi,
----------------------------------------first of all, thanks for answers. They are great! I did a little research, and found this card: http://www.techpowerup.com/gpudb/2396/geforce-gt-630-rev-2-pcie-x8.html I think that is the fastest there is for the PCIe x8 |
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Coleslaw
Veteran Cruncher USA Joined: Mar 29, 2007 Post Count: 1343 Status: Offline Project Badges:
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That card should do just fine. I honestly doubt you will see any real degradation of performance even with high end cards as long as you follow the general accepted rule of dedicating a core/thread per GPU.
----------------------------------------For those interested in the different PCIe slots, I found this article very helpful in explaining things. http://www.tested.com/tech/457440-theoretical...-express-and-thunderbolt/ |
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