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[wccftech] MSI Shows Off Z97 Motherboards Prototypes - Page 6

post #51 of 67
Do we know yet if the Z97's are going to have the same issues regarding PCIe lanes as Z87, requiring PLX chips for 3-way SLI?
post #52 of 67
Quote:
Originally Posted by Mand12 View Post

Do we know yet if the Z97's are going to have the same issues regarding PCIe lanes as Z87, requiring PLX chips for 3-way SLI?


I highly doubt Intel will allow the 'mainstream' boards (LGA 1150, 1155, etc) to have support for stuff like 16x/16x/8x or 16x/8x/8x for Tri-SLI/CFX. That seems to be one of the selling points of their 'enthusiast' / 'extreme' segment (X59, X79, soon to be X99).

But one can hope, no?
post #53 of 67
Quote:
Originally Posted by Mand12 View Post

Do we know yet if the Z97's are going to have the same issues regarding PCIe lanes as Z87, requiring PLX chips for 3-way SLI?
PCIe lanes are hardwired into the CPU, you'll have to have some sort of switch/bridge chip unless you want it stuck at 8x/8x or 8x/4x/4x
post #54 of 67
Ah, so it's a Haswell thing, not a motherboard thing.

Is there any information on whether Broadwell is doing the same thing?
post #55 of 67
Quote:
Originally Posted by Mand12 View Post

Ah, so it's a Haswell thing, not a motherboard thing.

Is there any information on whether Broadwell is doing the same thing?
I think Intel's pretty firm on the mainstream CPU's having 16 lanes only. It's been that way since 1366 and 1156, and continues with 2011/1150. Intel's suggestion is to buy the 2011 chip if you need more lanes. frown.gif
post #56 of 67
Isn't it still cheaper to go with a PLX 1150 than to go for a 2011, since both CPU and MB are more expensive for 2011? And if you don't need the extra cores, being gaming-focused, is going with 1150 still better even if you do want 3-way SLI?
post #57 of 67
Quote:
Originally Posted by Mand12 View Post

Isn't it still cheaper to go with a PLX 1150 than to go for a 2011, since both CPU and MB are more expensive for 2011? And if you don't need the extra cores, being gaming-focused, is going with 1150 still better even if you do want 3-way SLI?

iirc PLX chips introduce latency and aren't as good as natively having the optimal # of lanes

I'm sure there's a reason people recommend X79 for tri-sli.

It's also possible that an 1150 chip holds back 3 GPUs more so than a 2011 chip?
post #58 of 67
Quote:
Originally Posted by Yukla View Post

iirc PLX chips introduce latency and aren't as good as natively having the optimal # of lanes

I'm sure there's a reason people recommend X79 for tri-sli.

It's also possible that an 1150 chip holds back 3 GPUs more so than a 2011 chip?

Native PCI-e lane wise, yes for tri sli:

1150/1155: it's 8x/8x/4x

2011: 16x/16x/8x


There's simply more lanes on 2011 boards to do full speed for 3 cards whereas 1150/1155 the 3rd card would be stunted by 4x only.
     
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post #59 of 67
At most, are we looking at a 10% performance boost at stock clocks from Haswell (just like the jump from SB to Ivy and Ivy to Haswell)?
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post #60 of 67
They look bland, however I suppose they are prototypes and have not been made pretty. Just out of curiosity, besides DDR4, is the 4670k and the MSI GD65-Z87A Gaming less then what is being released? Or should I wait for whatever is next after this release.
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