1. Do you need support for Assetto Corsa Competizione? Please use the proper forum below and ALWAYS zip and attach the WHOLE "Logs" folder in your c:\users\*youruser*\AppData\Local\AC2\Saved. The "AppData" folder is hidden by default, check "Hidden items" in your Windows view properties. If you report a crash, ALWAYS zip and attach the WHOLE "Crashes" folder in the same directory.
  2. FOR ASSETTO CORSA COMPETIZIONE: If you report issues with saved games, please always zip and attach your entire User/Documents/Assetto Corsa Competizione/Savegame folder!
  3. If your game executable is missing, please add your entire Steam directory to the exceptions in your antivirus software, then run a Steam integrity check or reinstall the game altogether.

[SUPPORT] Multi-GPU and Triple-Screen

Discussion in 'ACC Hardware Discussions' started by JetPistol, Sep 12, 2018.


Is support for multiple GPUs and screens (still) a crucial feature for modern racing sims?

  1. Yes

    154 vote(s)
  2. No

    9 vote(s)
  1. szydl0

    szydl0 Rookie

    @Rookie0ne Thanks for the tip with Conan Exile. I found unofficial profile for SLI and it works pretty good in ACC, compared to the other SLI bits. No artifacts or flickering. I think it is a good start for further tweaking. I enclose it in this post. Shadows are turned down on purpose - they usually kill scaling on unofficial SLI profiles.

    My specs:
    P9X79-E WS
    i7 4960X@4ghz
    32GB DDR3 1600mhz
    2x 970 GTX

    [​IMG] [​IMG]

    Edit: I replaced images to hosted ones. Really, rescaling to 640x360 today?

    Attached Files:

    Last edited: Dec 1, 2018
    Marcio Novaes, JetPistol and Shark75 like this.
  2. NWG.Slum

    NWG.Slum Racer

    After spending another few hours testing with some friends from Nvidia (who work in the software support side/drivers) it is clear that you will get a BETTER OVERALL EXPERIENCE running without SLI. Period. Use FCAT to measure frame timing, and you will see. At least with Pascal+
  3. hosenmatz

    hosenmatz Gamer

    Is it a different story when you pair the new RTX Cards with NV-Link?
    Or is a SLI Profile also necessary for NV-Link ?
  4. NWG.Slum

    NWG.Slum Racer

    Well now, THIS is something that I know for a fact is going to be important in the future. With Surround, VR, UW Displays, you bet this is going to be an important feature.

    At this time, that is all that I can personally comment
  5. martcerv

    martcerv Alien

    As far as I have seen NVlink is just a higher bandwidth multi gpu link still needing an sli profile to work. Seeing how little support nvidia gave SLI and NVlink being such a small niche there really wont be much more support, they will sell you the $5000 worth of hardware that would theoretically be great if software supported it. Anyone remember Nvidia claims about VR SLI years ago, how did that end up, also RTX how it just works and DLSS lol. The 10 series they sold a higher priced HB sli bridge and gave it even less support then the years before so NVlink for consumer multigpu gaming is just taking the piss, they literally are seeing how much they can milk people for their hardware. I mean if it at least just worked as NV are using as their current talking point it would be ok but no NV specific features have ever done this and many never worked beyond a tech demo years after they were launched.

  6. A.K.Racing

    A.K.Racing Gamer

    why you so mean?somebody kick your xxx today?
    Marcio Novaes likes this.
  7. Top$yKret

    Top$yKret Rookie

    So at the end of 2019, does anyone know if it is worth getting 2 2080ti's with nvlink for ACC in VR? I have 1 2080ti and Samsung odessey plus. With ultra settings I average between 37 and 42 fps. Wondering if nvlink will improve the experience. Does ACC support nvlink?
  8. Glen Orpheus

    Glen Orpheus Racer

    Unlike traditional SLI, for VR the GPU drivers do not automatically enable SLIwithout explicit support in the game. The game needs to render the left eye on GPU0 and the right eye on GPU1 (or vice-versa).
  9. Top$yKret

    Top$yKret Rookie

    Thanks Glen. If I understand correctly, ACC doesn't offer multi-gpu support for VR (yet)? Since the game is already released, I doubt if Kunos would implement that.
    Glen Orpheus likes this.
  10. Yzangard

    Yzangard Gamer


    tested this profile with 2080 Ti NVLink and it seems to work a bit better than AFR2, I had something like 100ish FPS with AFR2 and I am hitting the 130 / 140 FPS with this profile on a 32:9 1440p monitor (5120 x 1440). Average FPS is somewhere between 95 and 110 FPS.

    Everything is on epic settings, 20 cars in race.

    Not bad, at all...
  11. oh o ! For real a 2080ti sli setup that's actually working ...........?!?! I have triple 2k screens so this is one of these posts I've been dreading seeing.
  12. Yzangard

    Yzangard Gamer

    Not sure why you say that 2080 Ti's SLI aren't working, didn't read anything on other forums but in my case, there is always a setting (AFR or specialized profile) that is actually enhancing performances. With ACC, AFR2 was already pretty good (default setting was not bad as well, not sure nvlink / sli really worked but both cards were working, one more than the other but the 2nd one was doing something as well since its occupation rate was flowing from 20 to 50%).

    Hitting 100+ FPS is pretty easy with my resolution, even 130+ FPS
Similar Threads
Forum Title Date
Graphics and Models/Tracks Bugs & Issues Shadows from high to medium brings fps-drop in multi-gpu! Jun 23, 2014

Share This Page

  1. This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
    By continuing to use this site, you are consenting to our use of cookies.
    Dismiss Notice