Perfect SLI Scaling w/ rFactor 2 - Great Job ISI!

Discussion in 'General Discussion' started by Spinelli, Jul 12, 2015.

  1. Spinelli

    Spinelli Banned

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    Is 353.30 not able to be used with Win 10?
     
  2. Magus

    Magus Registered

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    I tried 353.30 in W10 but I am unable to successfully set up the Surround Display. I have 5 monitors attached to my PC, 3 for the racing rig and 2 on the desktop for work etc. Not tried unplugging the 2 desktop ones and trying but if I had to do that each time I wanted to play then I would prefer to either roll back to W8.1 or attempt a fresh install of W10.
     
  3. Sherwin92

    Sherwin92 Registered

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    Delete please, I have to learn to read first next time :)
     
  4. Magus

    Magus Registered

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    So after a fresh install of W10 (& rF2), using 353.62 drivers, I still have a drop of around 20-30fps using the same settings under W8.1. Both GPU don't get any higher than 47% usage using any of the Sli profiles, this profile in fact gets the most usage but as stated, it is well under what I was getting in W8.1. SO either time to roll back to W8.1 or wait to see what unfolds as more people upgrade. Atm, I feel my situation maybe an isolated case and therefore hardware related.
     
  5. Spinelli

    Spinelli Banned

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    I say go back to Win 8.1. Win 10 is still in it's infancy (relatively speaking) and only been available to the masses for an extremely short period of time. Why not wait 6-12 months for it, and support for it, to mature under mass-public testing?
     
  6. MacaRonny

    MacaRonny Registered

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    Have the same problem, must be driver related. had a perfect SLI scaling with driver 353.30 but with that driver i had some problems with the surround setup. Seems that NVIDIA has some problems with giving us a good driver for Windows 10.
    Read the NVIDIA forums, many people having troubles with the NVIDIA drivers.
     
  7. WhiteShadow

    WhiteShadow Registered

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    Does SLI Compatibility Bits: 0x02D04005 work to anybody with latest Nvidia drivers? I get only 60-85 fps with GeForce Driver WHQL 355.98. GeForce. Driver WHQL 353.30 and 353.54 gives me over +160 fps in every track with same nvidia inspector and game settings.

    Any ideas?
     
  8. Eddy

    Eddy Member

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    More people have this see: http://isiforums.net/f/showthread.php/26536-Nvidia-Display-Driver-355-98-killed-my-frames

    though i don't have sli also for me that driver wasn't good so went back to stable one
     
  9. Kristoff Rand

    Kristoff Rand Registered

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    same here. 355.98 does not work with the Lego sli bits. only 70fpe. going to try the new beta then revert.
     
  10. Spinelli

    Spinelli Banned

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    trt 353.30, that's what I was using with the lego bits along with Win 8.1.
     
  11. lamck

    lamck Registered

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    Have been SLI user for about 2 months. Worried after placing order for 2nd 980Ti as the SLI experiences of rF2 reported in the forum were mixed. Now it is ok for me.
    W10 + 355.82 + Lego bit + off MFAA, 1st GPU at 8x-9x. usage while the 2nd at 9x-99%.

    For fps, it was not very good at the beginning, about 4x (sometimes 3x at pit) - 8x at Longford + AC + Coupe + NSX + 3x AIs, all rf2 graphic max for 3 2560*1080 multi-view. And it was merely over 90 fps at single 2560.

    However recently, I noticed the fps over 100 and even 140-170 fps at single 2560. The fps was also increased by 20fps at 3 2560 multi-view. Not sure if W10 has been updated something.
     
  12. Spinelli

    Spinelli Banned

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    Sorry I didnt quite understand your last paragraph, are you saying the 2nd GPU only gave you 20 more fps?
     
  13. lamck

    lamck Registered

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    All figures were in SLI-mode. I noticed recently that the average fps increased by ~20fps with unknown reason as I didn't change the graphic driver, graphic driver/ inspector / rf2 in-game graphic setting, and AI number was similar. I tested the SLI at very beginning in single monitor (2560*1080), the fps hardly exceeded 90. But at about 2 weeks ago, the fps exceeded 100 and sometime even at 140-160fps in single monitor. I'm not sure if it is related to W10 updates.
     
  14. alpha-bravo

    alpha-bravo Registered

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    day of time and weather can make a huge difference for shadows and enviroment reflections = impact to fps. I suggest:
    create a testing scenario of your choice, let drive the AI, enable ingame fps counter, notice the places where your fps goes down, enable replay and use for future comparisons always this enviroment with resume from replay.
     
  15. dsuspense

    dsuspense Registered

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    W10 + 355.82 + Lego bits still give me good SLI results.
    The 355.82 driver gave me about 20 fps boost.
     
  16. WhiteShadow

    WhiteShadow Registered

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    353.30 works fine with Win 10 and SLI Compatibility Bits: 0x02D04005.

    Res. 5760x 1080
    GeForce Driver WHQL 355.98 > 60-85 fps
    GeForce Driver WHQL 353.30 > 155-210 fps.

    I have dedicated PC to rFactor2 only. GeForce Driver WHQL 353.30 clean instal, SLI Compatibility Bits: 0x02D04005 is 2x fps, no doupt.
     
  17. delapecs

    delapecs Registered

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    +1
     
  18. Magus

    Magus Registered

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    delapecs, I notice on your system specs it states Windows 8 64-bit, do you run W10 now? I ask because I lose around 20-40fps using W10 regardless of which sli profile I use. My GPU usage drops to 60-70% and doesn't rise above that in W10. I'm at a loss as rF2 is the only game that does this and being the game that I mostly play, I keep upgrading to W10, testing, and reverting back to W8.1 as the latest Nvidia drivers don't seem to change this fact for me.

    Still trying to pinpoint why this might be and I was starting to think it is those of us that are running the kepler architecture but I see you have 770's and therefore blow that theory out of the water. So just want to check to see if you PC specification post is up yo date or not. Thanks.
     
  19. Spinelli

    Spinelli Banned

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    This isnt much help but don't go by GPU usage (if you see high GPU usage) as I've had some SLI moments showing high GPU usage on both cards yet still had bad SLI scaling in some games. Then with different SLI bits I had big boosts in fps with not much boost in GPU usage.
     
  20. Magus

    Magus Registered

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    Yes but with W8.1 I have around 70-90% GPU usuage on both cards with lego Sli and have a constant 60fps (with VSYNC enabled) but with W10 under the same testing conditions I will have 60-70% GPU usage and the fps will at most hit 52fps but for example on the start grid of silverstone with the nismos be between 27-42fps.

    Yet there are other people running rF2 with Sli and W10 without any performance drops and some people reporting better performance. I'm not just an isolated case as there are a few others I have seen on this forum having issues with W10 performance and rF2 with Sli. Just trying to pin point what variable it is that is causing this.
     

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