Venturi, just wondering what games you have played on this monster setup that actually use SLI so far? If you've gamed on it at all, since seems more like a workstation
Some smooth mgpu titles are RDR2, SOTTR, ROTTR, Sniper elite 4, Zombie Army 4, Gears, X4, Strange Brigade, Quake 2 RTX, the last three Hitman games, Deus Ex MnkDvd, Echo, Ashes of the singularity, some of the civilization games etc.
These titles (above) are NOT SLI, they are Vulkan or DX12 mgpu titles.
I find Vulkan to be better than DX12 at mgpu.
Non MGPU games I played on these cards include Cyberpunk 2077, Serious Sam 4, Succubus, RE Village, and lately I just completed 100% Chenobylite. I had it for a while, but dusted it off after watching Chernobyl on HBO (the 5 part series with Harris). I also did the whole RDR2 recently and that title is MGPU, ran well, better than when there is only one card not just in fps, but overall.
I think SLI is rather dead, the change now is apps and games that are specifically written to be multi GPU, not anything less than complex. The DX12 magic bullet of mgpu didn't really take hold. Vulkan scales much better than DX12 and seems better embraced in many indie developments. With that said, in pure SLI, I would usually avoid TAA (med/high) and favor SMAA or FXAA, There are bumps - I had to learn a lot of inspector tricks and settings to get the best out of it - something no one should have to go through. I have had good SLI experiences in many titles, I have had poor SLI experiences in even more titles. After a while one learns which engines suck at it and which are ok (example UNITY suck in SLI and now in NVlink) UE3 great in SLI, but UE4 required skullduggery, etc. So SLI was a mixed bag based on how much one wanted to believe it was great,- it was 25% great for many games, 20% so-so games, and best to to say much about the rest...
Where is the carrot? in order to get 4K, 5K and 8K to be playable with max eye candy settings, its going to require more than one GPU for years to come. Example, Cyberpunk 2077, graphics are 'OK" but the frames with RT and max candy (psycho settings) stink at 4K - 44 FPS on a 3090 Ti in the built in benchmark (ver 1.52). This game would benefit from an mgpu make over. But its single card only. All that horsepower and 44 FPS...... Just 44FPS with MAX and psycho RT at 4K (no DLSS) -
...this game could seriously benefit from mgpu.
Also even when using the 3.9 DLSS on quality in cyberpunk, there is significant drop in visuals/texture clarity, resolution and definition. So the answer to getting the frames in an RT game is not DLSS if one is trying to max the visual experience at 4k, (we don't speak of 8K and max settings and cyberpunk). Sometimes it seems DLSS is there just to give the illusion that Ray Tracing is playable at larger resolutions (why buy a 4k monitor to run at 2560x1440?)
I've had great success improving Star Citizen / Squadron 42 (another behemoth). But the field of MGPU games is poor. Hopefully as monitors grow in resolution there may be more effort on MGPU. But even the future 5090 RTX is not going to provide decent 5k and 8k gaming with max eye candy and RT, no DLSS as a single card. I doubt it will be nvlink as the power requirement for two 5090 cards in one rig would require a EU PSU and a 220v socket installed. Then again, who knows for sure.
Unfortunately, my rig also has to do my dissertation, so that's why it exists, and that is where it gets its workout.
The information above is just my humble opinion, I realize a lot of folks like DLSS, and I would like it too if I could not see the drop in visuals. Maybe it will get better. I experimented with 3.9 and 4.0 and it seems that 4.0 is actually worse.