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[HWUnboxed]Nvidia’s HB SLI Bridge – Surprising gains! GTX 1080 SLI Testing Inside! - Page 7

post #61 of 169
Quote:
Originally Posted by Silent Scone View Post

Most ridged bridges shipped with motherboards will offer the same bandwidth. This, if anything, is just something that looks nice - and I suppose NV moving away from the flexi bridges all together in a more official stance. I'd definitely consider it if using a high resolution panel in conjunction with a high refresh rate.

Yeah, I don't doubt the theoretical improvements; or actual improvements in the right scenario, it just seems like it should costs at most $20.
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post #62 of 169
He says right at the end @ about 9mins that two ribbon bridges have the same gains.
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post #63 of 169
Quote:
Originally Posted by Silent Scone View Post

Most ridged bridges shipped with motherboards will offer the same bandwidth. This, if anything, is just something that looks nice - and I suppose NV moving away from the flexi bridges all together in a more official stance. I'd definitely consider it if using a high resolution panel in conjunction with a high refresh rate.

No, they won't. All old SLI bridges, be it floppy or hard bridges only connect one SLI finger to one SLI finger of another card electrically. Virtually all of the performance gains of the HB SLI bridge are from simply linking both SLI fingers of two GPU's together.
Quote:
Originally Posted by emett View Post

He says right at the end @ about 9mins that two ribbon bridges have the same gains.

I'm sure the driver does a simple check. If it sees connectivity over both SLI finger, it thinks there is a HB SLI bridge and runs 650 MHz x2. It's as simple as that. If someone wants to run 2x floppy connections instead of the hard HB bridge, have at it.
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post #64 of 169
Quote:
Originally Posted by umeng2002 View Post

3rd year Electrical Engineering college students could design this part.

Has anyone done a teardown? Are their any expensive ICs on it? Because it looks like they just made a solid connector to get EMI under control... and added LEDs.

You must either think very highly of these bridges, or think very poorly of a 3rd year electrical engineering student.
post #65 of 169
Probably just fake gains, e.g. it detects if using bling bridge or hb bridge then the driver 'allows' faster processing so better fps. its just a marketing ploy to get you to buy more things when it wasnt broken to begin with and ngreedia just implemented software locks to full speeds
post #66 of 169
Quote:
Originally Posted by CallsignVega View Post

No, they won't. All old SLI bridges, be it floppy or hard bridges only connect one SLI finger to one SLI finger of another card electrically. Virtually all of the performance gains of the HB SLI bridge are from simply linking both SLI fingers of two GPU's together.
I'm sure the driver does a simple check. If it sees connectivity over both SLI finger, it thinks there is a HB SLI bridge and runs 650 MHz x2. It's as simple as that. If someone wants to run 2x floppy connections instead of the hard HB bridge, have at it.

Well said! I hope that is the case, I can't imagine the ribbon having anything to do with the transfer rate. thumb.gif
post #67 of 169
Quote:
Originally Posted by chronicfx View Post

Well said! I hope that is the case, I can't imagine the ribbon having anything to do with the transfer rate. thumb.gif

It might affect the electromagnetic interference. They traces might be a little thicker, etc. stuff like that.
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post #68 of 169
Quote:
Originally Posted by bucdan View Post

The scaling for multi-GPU looks pathetic for what you spend. I would've like to think that the scaling would be what the 1080 is getting with the HB bridge from the beginning.

If I'm honest, that's almost always been the case at launch...Compare older cards and scaling goes right up which is why the only real reason to go SLI/CFX is if you can get a cheap used card when the next gen launches and want to maintain performance. (eg. I got two HD4890s and came very close to a GTX 480 in performance, a friend of mine is looking at a second 980Ti now the 1080 is launched)
Quote:
Originally Posted by chronicfx View Post

Well said! I hope that is the case, I can't imagine the ribbon having anything to do with the transfer rate. thumb.gif

iirc there was a difference between two versions of the eVGA bridge that allowed it to support a higher Mhz. I imagine it's like the HD4890 versus HD4870 in a way, exact same basic design however more components to help the stability of the connection allow higher clocks. That's not to say that all flex/old PCB bridges are incapable of 650Mhz, but it might depend on your situation. (ie. Lots of EM interference in your area might make it unstable but a HB bridge might be better suited)
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post #69 of 169
Quote:
Originally Posted by JackCY View Post

lol, really? they didn't use 2xflex bridge? come on biggrin.gif
How hard do they need to sell the fancy new bridges it's a just a damn piece of wired connections, no chips no nothing except a silly LED.

There are better reviews that show how the HB bridge does and it's the same as the flex one. Obviously.

Anything they can do to rip off their customer base. Anything goes these days. thumb.gif
     
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post #70 of 169
Quote:
Originally Posted by battleaxe View Post

Anything they can do to rip off their customer base. Anything goes these days. thumb.gif

The Founders tax was a real going over the edge point i think for NV even. I mean bog standard PCB, crappy cooler and charge $100 for the so called "premium" components. Its almost like they engineered a shortage and are taking advantage of the situation. I don't believe the 1080 sold better than 980ti bs they have been spouting too .. i think that is just bs and spin IMHO.

One of the issues with NV too is they go out of their way to degrade the last gen. I mean IF the HB bridge is getting most of its gains from having two bridges between SLId cards well guess what , maxwell could do the same. Maxwell cards also have the pinouts to support dual bridging. My asus bridge is a dual bridge for tri sli. But to expect NV to allow this with maxwell i won't hold my breath.

I guess i'm getting cynical , but if you look at it they just disabled tri SLI gaming for anybody that had it prior , i had tri 980s and they were fine apart from vram limit in most AAA games. Now thats not an option. I have not heard if you can actually play a game in tri sli now on an older gen card ? did they retro disable it ?? I feel sorry for people affected if that's the case.

So lets sum it up :
Founders Tax. Prices up $150 on last gen releases even for the mid range.
$40 HB bridges that give 70% SLI scaling which is touted as an upgrade. We had better scaling prior and it was free with the mobo ribbon. So a typcial high end SLI user is now paying $340 usd more for the mid range first release of the next gen.
No support for tri SLI gaming. It was working fine with my 980s for many games , now its not an option . Not a great direction to go in - they should be supporting multi GPU and more parallelism so we can run higher res's etc.

Thats enough of a rant, this comes from a TX sli owner so currently NV buyer but won't be much longer with this sort of carry on.
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