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Minor Video card question


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#1 Liger_XT5

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Posted 13 April 2010 - 11:14 AM

I've been running on a GT(s?) 9800 for the past few years and thinking of upgrading to a nvidia 480 in a little while.
I thought about doing some research and found out XFX is NOT making any of the 400 series, which left me in question.

Can I have different manufacturer brands of nvidia cards in sli and be stable. I plan to keep the 9800 in for the boost of sli that I recall reading for physic boosts.
An example of what I'm talking about is I have the XFX 9800, could I go with, let's say, ASUS 480?

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#2 the_patriot11

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Posted 13 April 2010 - 08:52 PM

to my knowledge, you cannot SLI a 9800 and a 480. Different brands are not a problem, but to SLI both cards need to have the exact same GPU, and for optimal performance, the same amount of memory. You can have one with more memory then the other, but it would be a waste because the setup will only use the ram in the second card that matches the first. For example, if you have 1 512 mb card and one 1 gb card, the computer will only use 512mb of each card. So to answer your question, you can mix brands but not GPUs, in order to SLI you will need to buy 2 480s.

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#3 RainbowSix

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Posted 13 April 2010 - 11:27 PM

You CAN, however, use the 9800 as a dedicated PhysX card though this probably won't improve graphics or performance much.
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#4 DJBPace07

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Posted 14 April 2010 - 12:03 AM

I thought you could mix cards with ATI but not Nvidia? I always heard that the cards could come from different manufacturers, have different amounts of memory, and even a different BIOS, but that they had to be within the same model or GPU core name. Usually, the faster of the two cards will downclock to the slowest card.

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#5 the_patriot11

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Posted 14 April 2010 - 09:21 AM

You can mix ATI cards as long as they are the same series-for example, you can mix a 4850 and a 4670. However, you cannot mix a 4850 and a 5770. with SLI, you cannot mix card types or series. If it is a 9800 it must be SLId with a 9800. The memory can mix and match but like I said it will only match the ram from the lower card. I dont know about using one as a phys x card, but thats not really SLI.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

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#6 Liger_XT5

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Posted 15 April 2010 - 10:56 AM

Thanks for the info guys, I'll do some more research on sli'ing with the Nvidia




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