Questions about SLI

Jgraham3364

Commendable
Mar 5, 2017
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Im currently using a i7-7700k which supports up to 24 lanes in the pci-e. Will it be stupid to add another gpu? Im running a 1070sc on x16, and a m.2 ssd on a x4. which is 20 lanes. if i add another 1070sc. it would only be able to run on a qt of the speed since i have 4 lanes left? im still new to this.. need help understanding
 
Solution
1. When utilized in SLI, both cards runs at x8 (assuming the correct slots are used), the x16 drops to x8.
At a basic level, you'd then be x8 + x8 + x4 = 20

2. x8 is exactly how it's intended to operate, and would be as good as any other SLI configuration.

3. SLI adoption / scaling is pretty poor in general. I'd recommend selling your 1070 and picking up a 1080 (or 1080TI) if you need more graphics horsepower. A single, more powerful card is always preferred over SLI.


Sli in and of itself is a waste nowadays. Also only if all of your stuff is going at 100% then the secondary 1070 will struggle.
 

Barty1884

Retired Moderator
1. When utilized in SLI, both cards runs at x8 (assuming the correct slots are used), the x16 drops to x8.
At a basic level, you'd then be x8 + x8 + x4 = 20

2. x8 is exactly how it's intended to operate, and would be as good as any other SLI configuration.

3. SLI adoption / scaling is pretty poor in general. I'd recommend selling your 1070 and picking up a 1080 (or 1080TI) if you need more graphics horsepower. A single, more powerful card is always preferred over SLI.
 
Solution

Jgraham3364

Commendable
Mar 5, 2017
41
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yeah i much rather use one 1080ti but ive been waiting on evga step up program for 4 weeks now, ive even tried selling my card with no luck. So im going with SLI bc im tried of the hassle. Ive seen good benchmarks with SLI 1070 with games that support SLI which every game i play does.
 
Just to add a comment, I'm on my last SLI build and I've been running SLI since the Voodoo 2 days of the late 90s. In 2-3 years at the current rate, we will not be seeing multi-GPU support at all for new game releases. And then there's the fact that Nvidia stopped supporting more than 2-way SLI (officially).

This all is not good news for those who want to one day upgrade to 4K and run 60FPS. Even a 1080Ti won't run most of today's AAA games at 60fps at 4K and would require 1080 in SLI.
 

Jgraham3364

Commendable
Mar 5, 2017
41
0
1,530
Thanks for all the comments. Im going to atleast try it out since i have the card on the way, if it fails and not up to my expectations, i have 90 days to step up with evga