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SLI bottlenecking

Last response: in Graphics & Displays
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a c 124 U Graphics card
September 23, 2010 4:45:20 PM

No bottlenecks will be had. In SLI you'll be at 8x/8x config, and again it won't matter. I'm running a pair of overclocked 5850s without issue on an i5 750. Reviews show the 8x lanes make very, very little difference. Between P55 and X58, with 5870s in the slots, the 8x/8x vs 16x/16x was less than 5% worse which can be attributed to other things like a slower CPU, slow DMI, or other stuff.

Anyway, don't worry about a bottleneck. Just make sure your mobo is SLI certified.
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a c 124 U Graphics card
September 23, 2010 4:54:04 PM

Yes of course. the 1156/P55 platform supports 16 PCIe lanes. With a single card you get all 16 lanes in one slot, with two cards you split the lanes to 8x/8x. 16 lanes provies more bandwidth, but like I was saying that doesn't really matter since most GPUs don't fill up 8 lanes' bandwidth.
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a c 236 U Graphics card
September 23, 2010 4:54:06 PM

if you run one card the default is 1x16

in SLI its 2x8

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September 23, 2010 4:56:42 PM

Thanks for the support guys :D  You were both helpful so i'll just flip a coin to see who gets best answer ^.^
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September 23, 2010 4:59:30 PM

Best answer selected by fatedcloud.
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a c 273 U Graphics card
September 23, 2010 5:00:12 PM

This topic has been closed by Mousemonkey
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