Is it normal for a gpu to immediately go to "gpu usage 100" after turning off vsync in a game?

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  • Alladeen
    PCHF Member
    • Nov 2022
    • 14

    #1

    Is it normal for a gpu to immediately go to "gpu usage 100" after turning off vsync in a game?

    So,i noticed this while playing Mad Max,vsync is turned on by default,and both gpu and cpu usage by that default settings are really low but the game runs flawless,without any stutter or a single frame dropping below 60,i get 240+ fps(when i turn off vsyinc)as soon as i turn off vsync the gpu starts running at 90-99 % cpu gets around 50-60 and thus i start getting in higher temperatues 70+.

    I understand that vsyinq syncs the framerate to your monitor rate,which in my case is 60hz only(it’s a 32" tv not monitor and it doesn’t support any higher hz rate)so when vsync is turned on i get that constant 60 fps but why do i feel like both my cpu and gpu are then underperforming with those % usages,is it because both dont need to work to their maximum to achieve those 60fps despite the game running flawless without any problems?Should i just not worry about this at all and play it locked at 60 fps and ignore the low cpu and gpu usage or are even the 70+ temps relatively normal when vsync is turned off?I might also add that it is really warm in the room where the pc is located

    Sys Specs:

    I7 3770 3.4ghz
    RX 580 8 gb
    8 GB DDR3 RAM 1333 or 1600mhz dont really know
  • Alladeen
    PCHF Member
    • Nov 2022
    • 14

    #2
    Idle temp is around 28-30c

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    • veeg
      PCHF Director
      • Jul 2016
      • 8982

      #3
      Hello

      Give us more info on your pc and the psu..

      @Pyro @TwitchisMental

      Comment

      • Alladeen
        PCHF Member
        • Nov 2022
        • 14

        #4
        Originally posted by veeg
        Hello

        Give us more info on your pc and the psu..

        @Pyro @TwitchisMental
        CPU
        Intel Core i7 3770 @ 3.40GHz 27 °C
        Ivy Bridge 22nm Technology
        RAM
        8,00GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
        Motherboard
        ASUSTeK COMPUTER INC. P8H77-M PRO (LGA1155) 21 °C
        Graphics
        Generic PnP Monitor (1366x768@60Hz)
        8192MB ATI Radeon RX 580 Series (Unknown) 20 °C
        Storage
        931GB Seagate ST31000528AS ATA Device (SATA ) 28 °C
        298GB Western Digital WDC WD3200AAKS-75L9A0 ATA Device (SATA ) 24 °C
        Optical Drives
        No optical disk drives detected
        Audio
        AMD High Definition Audio Device
        Win10 pro 64-bit OS

        The psu is a “ARLT” brand 600w

        What i also noticed when vsync is on the power consumption of the gpu is low too instead of what it normally should comsume like when vsync is off(around 160-180w)
        I might also want to add that i play most games at 1080p despite my tv not being able to reach those resolutions,the max from what i think is 1366x768@60Hz
        If you need any more specs,just tell me

        Comment

        • veeg
          PCHF Director
          • Jul 2016
          • 8982

          #5
          Ok never heard of that psu and that could be your issue here.

          Let’s get more help..

          @phillpower2

          Comment

          • Pyro
            PCHF Member
            • Jan 2019
            • 1189

            #6
            It’s not abnormal for your GPU and CPU to be running at low utilization at 60 FPS, I’ve had games where my GPU and CPU are <5% utilization. If you start seeing performance issues there may be an underlying problem, but I see no issues with this.

            According to online reports many users see their temps around 70-80℃, I would run as low on that spectrum as I could personally, and it sounds like yours is doing that just fine. Do you have adequate case ventilation?

            I’ve never heard of that brand of power supply, while it technically meets the specifications for your GPU I would personally look into swapping it for a quality 650W gold rated unit from Corsair, Seasonic, or EVGA (one with a 10 year warranty). This is assuming that Phill doesn’t trust them.

            Comment

            • phillpower2
              PCHF Administrator
              • Sep 2016
              • 15209

              #7
              Originally posted by Alladeen
              The psu is a “ARLT” brand 600w
              There is one thing that is possibly worse than using a known poor quality brand of PSU and that is using one that is unheard of, for brands of PSU to trust and brands to avoid please refer to the links in my sig.

              Allowing for the additional storage device you have something along the lines of a Corsair RM550x will suffice, similar from the other brands mentioned by Pyro if you can get them for less than a Corsair should also be considered.

              Comment

              • phillpower2
                PCHF Administrator
                • Sep 2016
                • 15209

                #8
                OP already had a related thread going which is now resolved so this thread will be marked and closed.

                Comment

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