since i operate in both realms, Gaming and Productivity/Deep Learning, NVLink is not dead for me.
Since im still operating on 1080’s for gaming HB SLi is not dead for me. it might be for YOU.
Whatever, there is basically no actual game that supports it, so i wouldnt have high hopes that it will be supported by newer games like MSFS. It will just not happen. Sorry.
EDIT: Not a single game released in 2020 supports SLI/NVLink as of my knowledge and sources found online.
supporting it natively and using it are two fundamentally different concepts.
i have several games that i can force SLi to work and without error.
ive been doing this for years on end, and have a educational background in this field.
Multi-GPU in games is not dead, I believe, since DX12 supports it. You can even use different brand GPUs and they don’t have to be connected via bridge to work. I am not sure, however, how many AAA games support multi-GPU, or whether it is automatically supported if they support DX12. I don’t play many games. But imagine if FS could allow multi-GPU where one GPU would support scenery, while the second GPU would drive the cockpit. The overall FPS would be much improved without the need for SLI or NVLINK.
I just voted!! my second 980Ti is a bit bored 
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so, now that i just got my HB SLi bridge put in, i now have a SOLID 60 FPS locked to the refresh of my display.
on a single card, it bounced all around 35-60’s and especially during scenery loading would drop down 10-15 FPS.
with these two 1080 FE Reference cards… NIGHT AND DAY Difference.
so SLi works in FS flawlessly
Hi
And for my two 980Ti, what do you advise me to do?
To activate or deactivate the Sli
turn it on and use the nVidia recommended mode setting. id tone down some of your settings since you have 980’s
Lol, SLI quite literally died today.
that doesnt mean its dead, not by a long shot, it actually prolongs SLi’s existence by adding the API Code to games without the need of external SLi Profiles within the driver.
this just means that the game will support SLi without the driver needing additional code. this will actually reduce the driver file size, since the SLi profiles will no longer be needed, thats a good thing.
SLI is being phased out, Just take a look at Nvidia’s new line of cards only one has SLI capability and that is the RTX3090. the rest of their line do not support SLI. SLI is only being used on these powerful cards for rendering animated movies like what pixar produces where it takes up to 12 months of rendering time for the movie. Yes anyone can buy 2 of these cards an SLi them but it will cost you a lot both in cash and power consumption. But hey if you have got a lazy $3k and a 1000w or better power supply go for it but SLI is not being supported in most games any more and gone are those days. You can SLI the older cards but the 3070 is almost 2x the 2080ti in perfomance but 1/2 the cost of a 2080ti.
Nvidia is dropping support in its drivers, but MS/Asobo can make SLI happen by themselves.
There’s definitely a market for flight schools and home cockpit builders for fixed base simulators, and MS/Asobo can easily charge extra for SLI profile/support for MSFS, especially if addons like the PMDG NG3 hits FPS like a dump truck. 20-30 FPS drops are not uncommon for the most complex addon aircraft + scenery.
Dual 3090s will be a drop in the bucket for these people, compared to a Redbird or Prosim setup. A ~50% uplift in FPS is well worth the expense, perhaps even with Titans/Quadros.
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Most cockpit builders run multiple PC’s in a network configuration to share the cpu and gpu load. Pmdg aircraft do hit fps, but its the CPU load causing the fps hit as there is a lot of background calculations going on. A typical builder will have one or more PC’s for avionics and a pc for visuals. Most run at 1080p resolution because they run projectors unless they go the full hog and run 4k projectors. Most builders who run prosim use the prosim flight model not pmdg for this reason or some use the ifly model as well. Yes I think SLI can be switched on by Asobo but if nvidia aren’t going to support it any longer why should they. In saying that with the launch of the 30 series of cards will see a price reduction in the 2080 series and why not SLI them for half the price.
Is MSFS 2020 SLI compatible ??
I have 2 Nvidia GTX 970s and I can only use one, I am fine with 20 or 30 frames per second but I just want to be able to run higher graphics on this game.
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@anon33898240 what SLI mode did you run ms flight sim in? I also have two 1080 GTX’s connected with a HB SLI bridge and haven’t had much luck. When I just use defaults, I don’t get any increase in FPS at all compared to a single card, and when I use the nvidia control panel to force alternate-frame or split-frame rendering, I actually get way worse performance - like single-digit FPS kind of worse.
Running at 1440p for what it’s worth.
sadly, after ive done a good amount of testing, none of the SLi modes work any better than the others or disabling SLi and running a single card. . we are going to just have to wait for DX12 and mGPU
Satisfactory supports it magnificently
Today 2 2080ti nvlink are more powerful than 3090. Are much powerful than 3080 (no sli option). The number of cuda cores are less in 3080 than 2080ti. The diference is the cuda core of 3080 work with two diferent kind of instruction. The cuda core of 2080ti works with that two instruction too but separatly. i have a two 2080ti , y get twice fps than benchmarks of 3080. Sli is the posibility for the people with less money. Dont let sli die, please.
nvidia has already killed SLI. 3090 is only card that has the nvlink bridge and the performance of it is negligible compared to single card performance, even in SLI supporting titles. Give it up. Nvidia has already. The only reason for the nVlink bridge is for workloads other than gaming that can utilize multi-gpu setups for tasks like blender rendering or compute tasks. Gaming SLI is dead.
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