So you have to buy them from evga or nvidia separately?

Another NVIDIA fail, advertising the new SLI bridge for Pascal and then not having it available for sale at launch..

I have read that the older bridges will work and that 3way SLI will work as well. Nvidia will be supplying a "Key" to purchasers of the 1080 that will "Unlock" the higher bandwidths to older bridges. To run 3 way the new dx12 will make this possible because it allows for the use of AMD and Nvidia cars at the same time. But almost no game will have support for such configurations and it will be tottaly up to the user for optimization.

I'm currently looking for the article. I just read that the key will enable 3 way sli but I know for certain the article I read yesterday stated that it would allow for the LED bridge to run the high bandwidth as well.

Yes, I see what you mean. The key increases the current LED bridges to 650.

So does this mean if I run 2 cards that I will need to get the key if I am using a current EVGA or Asus SLI LED bridge with the 1080s?

I have read conflicting information about this. The link cited suggests the key allows older bridges to run at 650, not 400. I have read other articles suggesting the older SLI LED bridges will run at 650 without mention of the key as you suggest.

I'm confused.

I think this may be related, but not 100% sure, here's the story:
 
I noticed that whenever I turned on "TAA" in a game like Fallout 4 or Eve online, my FPS would drop down and seem to be capped at 40 fps. even when the GPU was under fairly low load. and This topic got me thinking: is it a SLI bandwidth limit? does the TAA effect greatly increase the bandwidth needed by SLI? so I did some testing.
 
3 way SLI flexable bridge: rarely goes above at 40ish FPS in eve online with TAA on at 3840x2160
SLI off, single card: gets 60 FPS pretty steady under same conditions
SLI 2 way, using EVGA 2 way long LED SLI bridge: around 50ish FPS, varies a lot
SLI 2 way, using EVGA 2/3 way LED SLI bridge: steady 60 FPS
 
based on these results, I think I can say a few things:
TAA greatly increases the needed bandwidth for SLI bridges
Flexible bridges have the lowest bandwidth
EVGA's 2 way SLI LED bridges have higher bandwidth
EVGA's 3 way SLI LED bridges that can be used 2 way have even higher bandwidth, at least when used in 2 way configs
 
Don't however know the numbers for that, or if the Nvidia HB SLI bridge is that much higher than the 2/3 way bridge I used, but it seems that there is a difference between current bridges even on my GTX 980s under some conditions.

FYI the HB SLI 2-way bridge takes up both SLI slots on the card...    I don't think anyone has tested the cards in a 3-way setup to see if it works, at least my google searches turned up nothing but just a 2-way SLI test.
 

I use slot 1 and slot 3 they are both x16 slots does this bridge allow me to use these slots?
 
I dont really want to be using slot 1 and 2 as slot 2 is a x8 slot
 
looking at the pic at the beginning of this post it looks as if you have to use the first 2 slots.
 
That said before now i have used a 3 way bridge on 2 cards to give me the spacing to use slot 1 and 3 and it appears to work fine? 
 
 
 
 
 
 

Shadowdane
FYI the HB SLI 2-way bridge takes up both SLI slots on the card...    I don't think anyone has tested the cards in a 3-way setup to see if it works, at least my google searches turned up nothing but just a 2-way SLI test.
 

ok
 
so how about not being able to use these HB briges with EK water blocks? not sure why this is but EK site clearly states they wont work with their blocks

seta8967

andest2003
ok
 
so how about not being able to use these HB briges with EK water blocks? not sure why this is but EK site clearly states they wont work with their blocks

Not sure how ek locks dont fit this. If so sound like people are going to find a new wb company.

Aquacomputer has confirmed their GTX1080 blocks are compatible with the new HB bridge:
 
https://forum.aquacompute...f-r-gtx-1080-und-1070/

andest2003
ok
 
so how about not being able to use these HB briges with EK water blocks? not sure why this is but EK site clearly states they wont work with their blocks

 
I'm really not happy about this. I love EK blocks and was all set to get a couple. But I also want whatever benefits will come from using the HB bridge.
 
Will there be alternative HB bridges that would fit? Like will EVGA be producing their own version of the bridge?
 
Or alternatively, what other brand water blocks will work with the HB bridge? I see above someone mentioned Aquacomputer blocks work with the bridge, but I have never really been a fan of those. Come to think of it I really only like EK blocks, but I guess I could switch if I have to. Any one hear anything from other companies regarding this?

The EK blocks are available friday however i will wait now as i want to also be able to use the HB bridge
 
Something will have to change either a HB design that will fit or EK (Deleted for Foul Language). a bit of a poor show they wont work with the HB bridges 

Shadowdane
Looks like EVGA is showing the new HB SLI bridge at Computex!
https://twitter.com/EVGA_...tus/737537768117538816

Let's hope these are compatible with the EK blocks. I'd rather get the EVGA bridge anyway.

I am currently using 2 single sli bridges on my GTX 1080 FE and they seems to work just fine. They are the LED version evga put out I don't know when.