So I got my 2nd 2080TI today, together with the NVLINK adapter.
Installation was a breeze. Just plugged it in, plugged in the NVLINK adaptor (that green thing in the photo above) and then after booting I checked the enable SLI option in the NVIDIA menu. Tested with 3dmark, got over 16.000 which landed me in the top 15 there, LOL. Which makes one think, my system isn’t optimized at all, so not a lot of people are running setups like this. And I found out quite soon why …
Negative scaling is really a pain in the a$$. Video players like simple VR player don’t run as smooth, I had to turn down super sampling quite a bit to get to the 120 hz frame rate as I always enjoyed with just 1 video card. Also in some games I noticed lower performance. So I thought, ok in those cases I’ll just disable SLI. However it’s not really just a matter of disabling SLI in the NVIDIA menu, even with that option disabled I still get that effect. Maybe I just need to disable the whole card in the hardware manager?
Anyway, in known VR SLI supported games like Serious Sam there’s indeed a quite noticeable performance boost. Scenes with a lot of enemies that used to stutter with 1 card, now run smoothly. But as everybody knows that list is quite small.
For now, I think I’ll keep the SLI setup for maybe a few months, play the serious Sam series, Raw data and games like that and then will probably sell the card again.
By the way, I have it all running on a (edited) 850w power supply, I thought that I might run into problems but it seems to work fine, even under heavy load.