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Nvidia GTX 1080TI vs 1070, same FPS.... WHY??

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    Nvidia GTX 1080TI vs 1070, same FPS.... WHY??

    Hi community,
    I have a big problem, I have make a exe, and when i want to play my game withh my new card(1080TI),I have same fps as with my old 1070
    Any idea?
    does unreal set a performance(fps) limit

    thanks a lot

    #2
    Have a look at Framerate in project settings
    Last edited by mandango; 06-08-2018, 08:00 AM. Reason: Though was in wrong thread, VR

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      #3
      What is the refresh rate of your monitor? (Mine is 60 FPS.) The GPU could render 1,000 FPS, but the monitor can't show more than 60 FPS (or 144 FPS, or 90FPS), so it depends on what you are measuring. (Also, is V-synch enabled?)
      I'm @londonisunreal, the organiser of the London Unreal Engine Meetup group.

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        #4
        V-Sync is the obvious candidate, syncing your refresh rate to your display. You might also of course just be CPU-bound.

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          #5
          I have a 140FPS monitor, but here, my less fps is 45fps, and max is 250fps, average 75fps, but i dont know why is same fps on both,
          first spec : 1*1070, i7 6700 and 64go ram
          second spec : 2*1080TI, i9 7900X and 64go ram

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            #6
            was the i7 6700 using 100% all the time? if no, then using a i9 7900x will have zero impact on speed.
            unreal editor will not use SLI, and you will have to work with nvidia to create a profile for any game you create that you want to use SLI.
            and again make sure all fps limiters are off: uncap fps in editor with t.MaxFPS 1000
            make sure frame rate smoothing is off, disable driver based vsync, quit any programs that can read fps and cap them(FRAPS, afterburner, most overclocking and some recording software have options to cap fps)

            45 min and 250 max is a pretty huge swing in FPS.
            your game might have used the 1070 right to its limit, and the 1080ti is just sitting there doing nothing. try running the game at a higher screen % (try 140%(1080ti is around 40% faster than 1070)) and see if you get the same results.
            CEO of Prydetech

            https://www.artstation.com/ixicalibur

            Originally posted by ixicalibur
            Here you go, this is a link to every tutorial you could ever need plus instructions to access all the collective knowledge of mankind: [Super massive awesome link that every amazing game developer uses to instantly learn to be super awesome at making stuff]

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              #7
              thanks a lot; I try your setting ixicalibur
              you can check my test in attachment...
              Attached Files

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                #8
                UE4 does not support SLI out of the box. The editor wont support SLI. You can get SLI to work for a game/project, but a lot of features like SSR and TAA won't work with SLI, and it'll take some work to get it running.

                Looking at your attachment, most of the numbers look normal, 150 ScreenPercentage on PC1 33fps compared to PC2 42fps is the performance difference you should expect between those 2 systems.





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                  #9
                  Ok but, why no diffrence at 100 ScreenPercentage??
                  and why my GPU and CPU dont use 100%,
                  For exemple at 100 ScreenPercentage, I only use 57% of CG, so why I cant use 100% and increase my FPS?

                  I feel that the SLI works because I see my 2 cards are used when I run my exe, for exemple at 150 ScreenPercentage, we can see 100 + 30 so both card used, no?

                  Comment


                    #10
                    You hardly ever see any game engine utilize the processor at 100%, however you might find one thread that is at 100% which is the game thread.

                    Since the i9 has 20 threads the overall % CPU used = 5% if one of them is at 100% and all others at 0% (simplified example).

                    The game thread is not multi-threaded so it relies on a fast single core performance.

                    When the game runs you can easily see if the CPU is holding you back by typing STAT UNIT and look for the highest ranking MS on the list. If it is GAME then the CPU is holding you back, if it is DRAW it is also the CPU, but in regards to draw-calls sent to the GPU.

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