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SandyBridge and SLI

post #1 of 29
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Why doesn't P67/SandyBridge allow SLI setups with x16 and x16 speeds, or TRI or QUAD SLI like the X58 platform allowed? Isn't this going backwards in technology?
post #2 of 29
Not really. The 1156 came out after the 1366 socket, and the 1156 runs at x8 x8.

Edit. Besides, I don't know about you, but I fail to see a difference between a bandwidth of x8 x8 and x16 x16.
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post #3 of 29
Um... Sli on ud7 is x16x16 . Tri sli is x8x8x8
post #4 of 29
Quote:
Originally Posted by mrwalker View Post
Why doesn't P67/SandyBridge allow SLI setups with x16 and x16 speeds, or TRI or QUAD SLI like the X58 platform allowed? Isn't this going backwards in technology?
Because Sandy Bridge is a "mainstream socket", while X58 is intended for enthusiasts. This is not going backwards in technology they are just catering to a different market that doesn't use SLI or Crossfire as commonly.


Quote:
Originally Posted by Not A Good Idea View Post
Um... Sli on ud7 is x16x16 . Tri sli is x8x8x8
This isn't using the standard chipset though. They are using the NF200 chip to allow this.
Edited by Airolden - 2/1/11 at 11:34am
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post #5 of 29
No, the P/H 67 is not meant to be an upgrade to x58, it's an upgrade to lga 1556 which didn't support multiple GPUs at x16 bandwidth. Anyway, I wouldn't worry at all, sandy bridge actually uses pcie 3.0 which has twice the bandwidth of 2.0, so if you're running at x8, it's the same as running x16 in x58.
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post #6 of 29
Quote:
Originally Posted by Airolden View Post
Because Sandy Bridge is a "mainstream socket", while X58 is intended for enthusiasts. This is not going backwards in technology they are just catering to a different market that doesn't use SLI or Crossfire as commonly.
^This, good answer
post #7 of 29
Quote:
Originally Posted by Not A Good Idea View Post
...Tri sli is x8x8x8
For the UD7, tri-SLI is 16x+8x+8x
post #8 of 29
My P8P67-M Pro has three PCI-e x16 slots that can run at 16x/16x/1x or 16x/8x/8x
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post #9 of 29
Quote:
Originally Posted by Varjo View Post
No, the P/H 67 is not meant to be an upgrade to x58, it's an upgrade to lga 1556 which didn't support multiple GPUs at x16 bandwidth. Anyway, I wouldn't worry at all, sandy bridge actually uses pcie 3.0 which has twice the bandwidth of 2.0, so if you're running at x8, it's the same as running x16 in x58.
Sorry, but LGA2011 (or 1356 as it's being touted) will have PCI-E 3.0. It's out, yes, but not in anything mainstream yet. Please, dude, get your facts straight. I'm surprised you have so much REP by giving false answers.
post #10 of 29
The primary PCIe controller on the current Sandy Bridge platform is on the CPU itself. The CPU supports 2 x8 PCIe 2.x lanes.


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