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Overclock.net - Overclocking.net > Graphics Cards > Graphics Cards - General | |
which gfx cards need more than pci-e 2.0 x8
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LinkBack | Thread Tools |
09-13-09
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#1 (permalink) |
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PC Gamer
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which gfx cards need more than pci-e 2.0 x8
So which graphics cards require pci-e 2.0 (x16) e.g 4-8 GB/s transfer rate to fully function?
specifically for me will 2 pci-e 2.0 at only x8 be bottle necking a pair for gtx 275 or hd 4890? (im yet to choose one for this build) cf or sli enabled ofcourse |
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09-13-09
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#2 (permalink) | |||||||||||||
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4.2GHz
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At very high resolutions/details, yes 8x will be slower than 16x with those cards.
__________________At more typical settings, not, not significantly.
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09-13-09
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#3 (permalink) |
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PC Gamer
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ok.. the user will only be running about 1.5 megapixel res (like 1280x1028, not sure) but he might change to a high res, probably not massive. I guess physics and other processing is what he likes to have on high settings. And as game engine improve i guess they're pretty important
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09-13-09
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#4 (permalink) | |||||||||||||
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4.2GHz
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8x shouldn't be an issue then.
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09-13-09
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#6 (permalink) | |||||||||||||
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nVidia Enthusiast
 
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Unless he decides to run a resolution of say 2560x1600, then the x8 should not limit those cards by much, if at all.
At worst you'd see a ~5 FPS loss in x8 mode as opposed to x16. However, the only game I can think of that would even see that with 275's in SLI or the 4890's in CF would be Crysis. Just make sure to pair those up with a nice CPU to avoid any other bottlenecks.
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