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#1
23rd Sep 2008, 15:20
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So I decided to purchase a new motherboard with a PCI-Express graphics card but I had a question. The motherboard I chose on newegg has a NVIDIA nForce 750i SLI North Bridge, and the card I chose was an ATI Radeon HD 4850. So my question is, what does it mean for the motherboard that the north bridge is NVIDIA nForce 750i SLI? Does that mean it will run better on NVIDIA cards or NVIDIA cards run better on it than ATI? Will it bottleneck the graphics card I was going to get? The motherboard is ASUS P5N-D LGA 775 NVIDIA nForce 750i SLI ATX and the graphics card is ASUS EAH4850/HTDI/512M Radeon HD 4850 512MB 256-bit GDDR3 PCI Express 2.0 x16. Both are on newegg. Thanks in advance.
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#2
23rd Sep 2008, 16:10
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the fact that it is a 750i chipset won't make any difference to the compatability of graphics cards, unless you want to add more than 1 card in Crossfire (2 or more ATI cards)/SLI (2 or more Nvidia cards). The Nvidia chipsets (the 750i in your case) can only do SLI, not Crossfire, therefore if you want to use more than 1 GPU they will have to be Nvidia cards, however if you want to use 2 ATI cards (like the HD4850) you will need to get a motherboard with an intel chipset (p35, p34, x38, x48 etc) which will allow you to use crossfire, but not SLI. However if you are only wanting to use the single ATI HD4850, that motherboard will work fine, however we tend to recomend an intel chipset anyway, and that also allows you to upgrade to Crossfire at a later date.
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Hope that's helped clear things up, any more questions please don't hesitate to ask! 
My System: First OC
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#3
23rd Sep 2008, 16:24
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You mentioned that that motherboard can only run dual nVidia cards. What nVidia cards can run in SLI mode?
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#4
23rd Sep 2008, 16:28
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almost all of them (as long as they have a SLI bridge), but it's a waste on lower ones unless you just have a few lying around. a single-card will usually outperform two worse cards in SLI.
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"I loved the P182 so much that, when my wife's system was all noisy and needed all sorts of cleaning, I bought her one. Then, when I wanted a cat, I bought a P182. The P182 is not a cat per se, but it's still an excellent buy."
My System: 日夏子
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#5
24th Sep 2008, 01:01
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As carbon said. If you are wanting to use SLI with the same budget as the 4850, you will have worse perfornace with SLI than with a single 4850
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