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P67 PCIE Speed

post #1 of 6
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All of the new P67 motherboard specs say that the motherboards have one PCIe 2.0 slot that runs at 16x and if you use two slots for SLI or Crossfire the two slots run at x8/x8. Would that hurt your performance compared to some x58 boards that allow x16/x16? I am about to upgrade and wanted to know if I should buy a cheaper motherboard till better ones come out or should I get something good now. Would it be better to go with the LGA 1366 socket motherboards for SLI or buy the new LGA 1155 socket?
Edited by havok2021 - 1/13/11 at 3:50pm
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post #2 of 6
I would like to know this as well, Is there any x16/x16 motherboards coming out for the p67 platform ?
post #3 of 6
Quote:
Originally Posted by havok2021 View Post
All of the new P67 motherboard specs say that the motherboards have one PCIe 2.0 slot that runs at 16x and if you use two slots for SLI or Crossfire the two slots run at 8x/8x. Would that hurt your performance compared to some x58 boards that allow 16x/16x? I am about to upgrade and wanted to know if I should buy a cheaper motherboard till better ones come out or should I get something good now.
This has been discussed a lot (I take it not a lot of people have P55 setups). In real world tests, the difference is anywhere from 1-4%.

http://www.hardocp.com/article/2010/...16x16_vs_x8x8/
http://www.techpowerup.com/reviews/A...press_Scaling/

@Piranha_Owns, there are already a few boards that can do x16/x16 because they have a NF200 bridge. However, I wouldn't pay the extra dough just for that. The only real advantage those boards have over these is that they support multiple GPUs (Tri-SLI/Crossfire).
post #4 of 6
1-4%. per card...
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post #5 of 6
Quote:
Originally Posted by havok2021 View Post
All of the new P67 motherboard specs say that the motherboards have one PCIe 2.0 slot that runs at 16x and if you use two slots for SLI or Crossfire the two slots run at x8/x8. Would that hurt your performance compared to some x58 boards that allow x16/x16? I am about to upgrade and wanted to know if I should buy a cheaper motherboard till better ones come out or should I get something good now. Would it be better to go with the LGA 1366 socket motherboards for SLI or buy the new LGA 1155 socket?
FYI ALL X58 motherboards supports 16x,16x
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post #6 of 6
Yeap but none of X58 support i7 2K series
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