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post #5871 of 6175
Quote:
Originally Posted by moustang View Post

Quote:
Originally Posted by Baasha View Post

I've run only 3DMark Fire Strike Ultra and Heaven 4.0 @ 4K and this is what I'm seeing as well - no perceptible improvement whatsoever.

Too early to judge; going to play some games and will update w/ some benchies.

You're benchmarks aren't telling the whole story. Check the frame times.

Warning: Spoiler! (Click to show)

The HB bridge has overall lower frame times and far more consistent frame times. There isn't the drastic jumps up and down like there is with the old bridge. So while your average frame rate may not be much difference you'll get significantly less stuttering.
ofcourse it will be exaggerated at that resolution:

http://www.techpowerup.com/reviews/NVIDIA/GeForce_GTX_1080_SLI/23.html
Quote:
A single frame at 4K resolution is 32 MB (3840x2160x4 bytes per pixel). At 30 frames per second, that's 960 MB, which is just shy of the 1 GB/s bandwidth classic SLI provides. This means that SLI HB provides no benefit until you exceed that limit, which happens at higher resolutions, like 5K or 4K@120. However, even when bandwidth is exceeded, you will not run at reduced framerates; rather, you will see stuttering on the monitor: the second GPU sends its frame over the SLI bus, but it will arrive too late to be sent to the monitor because of bandwidth limitations - it has to wait its turn, which is two refreshes, which causes the frames to be displayed in the wrong order, something you see as stuttering.
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post #5872 of 6175
A single frame is ~15MB (14.7456 MB to be exact) at 1440p. So with a SLI bandwidth of 1GB/s, that means it gets saturated at just 66 FPS. Yikes blinksmiley.gif

Well I'm glad I didn't go 980 Ti SLI to try and push 100 FPS @ 1440p then, would've been a massive waste of time and good money.
post #5873 of 6175
Quote:
Originally Posted by magnek View Post

A single frame is ~15MB (14.7456 MB to be exact) at 1440p. So with a SLI bandwidth of 1GB/s, that means it gets saturated at just 66 FPS. Yikes blinksmiley.gif

Well I'm glad I didn't go 980 Ti SLI to try and push 100 FPS @ 1440p then, would've been a massive waste of time and good money.
Only half of the frames need to be send, right? So that's 122 FPS - assuming uncompressed data.

EDIT: Never mind.. they'll need to get that within the frame time.. that'll be even less FPS because the picture need compute & drawing before able to send it.
Edited by 44TZL - 6/21/16 at 4:33pm
     
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post #5874 of 6175
I'm a fan of the G1. Orange accents wouldn't be my first choice but they'll be unseen in my case. I hope that there's a Ti version that's very similar. The performance seems to be on point and I like the understated looks and the branded backplate would jive with my Gigabyte MoBo.



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post #5875 of 6175
For me personally frame times are the absolute most overblown and overhyped statistic out there. If a game is running at 60+ FPS it doesn't matter what the frame times are it will look good to me. I get that some people are sensitive to stutter but I am not at all. Its just like when everybody was ragging the 7970 CF for supposed horrible frame times, meanwhile I was happily gaming with my pair wondering what all this crap about frame times was. Of course I can happily game at 30 FPS avg as well so that may explain it. I've always just chalked it up to people being elitist and making silly statements like "My eyes will begin to bleed if I don't have a steady 150 FPS at all times". Even with VR I don't need anywhere near the hyped 90 FPS to enjoy it...
post #5876 of 6175
Quote:
Originally Posted by Majin SSJ Eric View Post

For me personally frame times are the absolute most overblown and overhyped statistic out there. If a game is running at 60+ FPS it doesn't matter what the frame times are it will look good to me. I get that some people are sensitive to stutter but I am not at all. Its just like when everybody was ragging the 7970 CF for supposed horrible frame times, meanwhile I was happily gaming with my pair wondering what all this crap about frame times was. Of course I can happily game at 30 FPS avg as well so that may explain it. I've always just chalked it up to people being elitist and making silly statements like "My eyes will begin to bleed if I don't have a steady 150 FPS at all times". Even with VR I don't need anywhere near the hyped 90 FPS to enjoy it...

I know people who are perfectly happy driving around a Smart Car.
post #5877 of 6175
Quote:
Originally Posted by magnek View Post

A single frame is ~15MB (14.7456 MB to be exact) at 1440p. So with a SLI bandwidth of 1GB/s, that means it gets saturated at just 66 FPS. Yikes blinksmiley.gif

Well I'm glad I didn't go 980 Ti SLI to try and push 100 FPS @ 1440p then, would've been a massive waste of time and good money.

But doesn't alot of that go through the PCIe slots? I thought the bridges just aided the load but did not do the majority of the communication? Why even worry about 8x vs. 16x if everything is done through the bridge... right?
post #5878 of 6175
Quote:
Originally Posted by chronicfx View Post

But doesn't alot of that go through the PCIe slots? I thought the bridges just aided the load but did not do the majority of the communication? Why even worry about 8x vs. 16x if everything is done through the bridge... right?

It's potential additional bandwidth. At 16x 3.0 you have 16GB/s, where's with 8x 3.0 you have 8GB/s. The dual connection sli bridges theoretically add 2GB/s (although there's no official confirmation). That's a decent amount of additional data transfer bandwidth, especially for folks who are running in 8x 3.0 sli.

Unfortunately nvidia has been incredibly vague about what's transferred over the sli bridge, so we will never know for sure. Although the suspicion is that it's just used for frame syncing.
Edited by axiumone - 6/21/16 at 9:26pm
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post #5879 of 6175
Quote:
Originally Posted by magnek View Post

A single frame is ~15MB (14.7456 MB to be exact) at 1440p. So with a SLI bandwidth of 1GB/s, that means it gets saturated at just 66 FPS. Yikes blinksmiley.gif

Well I'm glad I didn't go 980 Ti SLI to try and push 100 FPS @ 1440p then, would've been a massive waste of time and good money.
ha ha what ?
post #5880 of 6175
Look at looniam's post immediately above mine.
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